X-Git-Url: http://git.iain.cx/?a=blobdiff_plain;f=settings.cpp;h=e72430fdeaead32a9fd6951a6eb0edf0ad2be9cb;hb=62f28c55d444d846579159133dbe091809a2c08b;hp=a3d301bab4c42c03a32df0e8dcbed8876295aba0;hpb=77855b77fa52ac6e844377a191c2ae836a32b5bd;p=nssm.git

diff --git a/settings.cpp b/settings.cpp
index a3d301b..e72430f 100644
--- a/settings.cpp
+++ b/settings.cpp
@@ -1,845 +1,1450 @@
-#include "nssm.h"
-/* XXX: (value && value->string) is probably bogus because value is probably never null */
-
-/* Affinity. */
-#define NSSM_AFFINITY_ALL _T("All")
-
-extern const TCHAR *exit_action_strings[];
-extern const TCHAR *startup_strings[];
-extern const TCHAR *priority_strings[];
-
-/* Does the parameter refer to the default value of the setting? */
-static inline int is_default(const TCHAR *value) {
-  return (str_equiv(value, _T("default")) || str_equiv(value, _T("*")) || ! value[0]);
-}
-
-static int value_from_string(const TCHAR *name, value_t *value, const TCHAR *string) {
-  size_t len = _tcslen(string);
-  if (! len++) {
-    value->string = 0;
-    return 0;
-  }
-
-  value->string = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));
-  if (! value->string) {
-    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, name, _T("value_from_string()"));
-    return -1;
-  }
-
-  if (_sntprintf_s(value->string, len, _TRUNCATE, _T("%s"), string) < 0) {
-    HeapFree(GetProcessHeap(), 0, value->string);
-    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, name, _T("value_from_string()"));
-    return -1;
-  }
-
-  return 1;
-}
-
-/* Functions to manage NSSM-specific settings in the registry. */
-static int setting_set_number(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! key) return -1;
-
-  unsigned long number;
-  long error;
-
-  /* Resetting to default? */
-  if (! value || ! value->string) {
-    error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-  if (str_number(value->string, &number)) return -1;
-
-  if (default_value && number == (unsigned long) default_value) {
-    error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-
-  if (set_number(key, (TCHAR *) name, number)) return -1;
-
-  return 1;
-}
-
-static int setting_get_number(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  return get_number(key, (TCHAR *) name, &value->numeric, false);
-}
-
-static int setting_set_string(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! key) return -1;
-
-  long error;
-
-  /* Resetting to default? */
-  if (! value || ! value->string) {
-    if (default_value) value->string = (TCHAR *) default_value;
-    else {
-      error = RegDeleteValue(key, name);
-      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-      return -1;
-    }
-  }
-  if (default_value && _tcslen((TCHAR *) default_value) && str_equiv(value->string, (TCHAR *) default_value)) {
-    error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-
-  if (set_expand_string(key, (TCHAR *) name, value->string)) return -1;
-
-  return 1;
-}
-
-static int setting_get_string(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  TCHAR buffer[VALUE_LENGTH];
-
-  if (get_string(key, (TCHAR *) name, (TCHAR *) buffer, (unsigned long) sizeof(buffer), false, false, false)) return -1;
-
-  return value_from_string(name, value, buffer);
-}
-
-static int setting_set_exit_action(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  unsigned long exitcode;
-  TCHAR *code;
-  TCHAR action_string[ACTION_LEN];
-
-  if (additional) {
-    /* Default action? */
-    if (is_default(additional)) code = 0;
-    else {
-      if (str_number(additional, &exitcode)) return -1;
-      code = (TCHAR *) additional;
-    }
-  }
-
-  HKEY key = open_registry(service_name, name, KEY_WRITE);
-  if (! key) return -1;
-
-  long error;
-  int ret = 1;
-
-  /* Resetting to default? */
-  if (value && value->string) _sntprintf_s(action_string, _countof(action_string), _TRUNCATE, _T("%s"), value->string);
-  else {
-    if (code) {
-      /* Delete explicit action. */
-      error = RegDeleteValue(key, code);
-      RegCloseKey(key);
-      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, code, service_name, error_string(error));
-      return -1;
-    }
-    else {
-      /* Explicitly keep the default action. */
-      if (default_value) _sntprintf_s(action_string, _countof(action_string), _TRUNCATE, _T("%s"), (TCHAR *) default_value);
-      ret = 0;
-    }
-  }
-
-  /* Validate the string. */
-  for (int i = 0; exit_action_strings[i]; i++) {
-    if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
-      if (default_value && str_equiv(action_string, (TCHAR *) default_value)) ret = 0;
-      if (RegSetValueEx(key, code, 0, REG_SZ, (const unsigned char *) exit_action_strings[i], (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
-        print_message(stderr, NSSM_MESSAGE_SETVALUE_FAILED, code, service_name, error_string(GetLastError()));
-        RegCloseKey(key);
-        return -1;
-      }
-
-      RegCloseKey(key);
-      return ret;
-    }
-  }
-
-  print_message(stderr, NSSM_MESSAGE_INVALID_EXIT_ACTION, action_string);
-  for (int i = 0; exit_action_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), exit_action_strings[i]);
-
-  return -1;
-}
-
-static int setting_get_exit_action(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  unsigned long exitcode = 0;
-  unsigned long *code = 0;
-
-  if (additional) {
-    if (! is_default(additional)) {
-      if (str_number(additional, &exitcode)) return -1;
-      code = &exitcode;
-    }
-  }
-
-  TCHAR action_string[ACTION_LEN];
-  bool default_action;
-  if (get_exit_action(service_name, code, action_string, &default_action)) return -1;
-
-  value_from_string(name, value, action_string);
-
-  if (default_action && ! _tcsnicmp((const TCHAR *) action_string, (TCHAR *) default_value, ACTION_LEN)) return 0;
-  return 1;
-}
-
-static int setting_set_affinity(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! key) return -1;
-
-  long error;
-  __int64 mask;
-  __int64 system_affinity = 0LL;
-
-  if (value && value->string) {
-    DWORD_PTR affinity;
-    if (! GetProcessAffinityMask(GetCurrentProcess(), &affinity, (DWORD_PTR *) &system_affinity)) system_affinity = ~0;
-
-    if (is_default(value->string) || str_equiv(value->string, NSSM_AFFINITY_ALL)) mask = 0LL;
-    else if (affinity_string_to_mask(value->string, &mask)) {
-      print_message(stderr, NSSM_MESSAGE_BOGUS_AFFINITY_MASK, value->string, num_cpus() - 1);
-      return -1;
-    }
-  }
-  else mask = 0LL;
-
-  if (! mask) {
-    error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-
-  /* Canonicalise. */
-  TCHAR *canon = 0;
-  if (affinity_mask_to_string(mask, &canon)) canon = value->string;
-
-  __int64 effective_affinity = mask & system_affinity;
-  if (effective_affinity != mask) {
-    /* Requested CPUs did not intersect with available CPUs? */
-    if (! effective_affinity) mask = effective_affinity = system_affinity;
-
-    TCHAR *system = 0;
-    if (! affinity_mask_to_string(system_affinity, &system)) {
-      TCHAR *effective = 0;
-      if (! affinity_mask_to_string(effective_affinity, &effective)) {
-        print_message(stderr, NSSM_MESSAGE_EFFECTIVE_AFFINITY_MASK, value->string, system, effective);
-        HeapFree(GetProcessHeap(), 0, effective);
-      }
-      HeapFree(GetProcessHeap(), 0, system);
-    }
-  }
-
-  if (RegSetValueEx(key, name, 0, REG_SZ, (const unsigned char *) canon, (unsigned long) (_tcslen(canon) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
-    if (canon != value->string) HeapFree(GetProcessHeap(), 0, canon);
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, name, error_string(GetLastError()), 0);
-    return -1;
-  }
-
-  if (canon != value->string) HeapFree(GetProcessHeap(), 0, canon);
-  return 1;
-}
-
-static int setting_get_affinity(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! key) return -1;
-
-  unsigned long type;
-  TCHAR *buffer = 0;
-  unsigned long buflen = 0;
-
-  int ret = RegQueryValueEx(key, name, 0, &type, 0, &buflen);
-  if (ret == ERROR_FILE_NOT_FOUND) {
-    if (value_from_string(name, value, NSSM_AFFINITY_ALL) == 1) return 0;
-    return -1;
-  }
-  if (ret != ERROR_SUCCESS) return -1;
-
-  if (type != REG_SZ) return -1;
-
-  buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, buflen);
-  if (! buffer) {
-    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("affinity"), _T("setting_get_affinity"));
-    return -1;
-  }
-
-  if (get_string(key, (TCHAR *) name, buffer, buflen, false, false, true)) {
-    HeapFree(GetProcessHeap(), 0, buffer);
-    return -1;
-  }
-
-  __int64 affinity;
-  if (affinity_string_to_mask(buffer, &affinity)) {
-    print_message(stderr, NSSM_MESSAGE_BOGUS_AFFINITY_MASK, buffer, num_cpus() - 1);
-    HeapFree(GetProcessHeap(), 0, buffer);
-    return -1;
-  }
-
-  HeapFree(GetProcessHeap(), 0, buffer);
-
-  /* Canonicalise. */
-  if (affinity_mask_to_string(affinity, &buffer)) {
-    if (buffer) HeapFree(GetProcessHeap(), 0, buffer);
-    return -1;
-  }
-
-  ret = value_from_string(name, value, buffer);
-  HeapFree(GetProcessHeap(), 0, buffer);
-  return ret;
-}
-
-static int setting_set_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! param) return -1;
-
-  if (! value || ! value->string || ! value->string[0]) {
-    long error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-
-  unsigned long envlen = (unsigned long) _tcslen(value->string) + 1;
-  TCHAR *unformatted = 0;
-  unsigned long newlen;
-  if (unformat_environment(value->string, envlen, &unformatted, &newlen)) return -1;
-
-  if (test_environment(unformatted)) {
-    HeapFree(GetProcessHeap(), 0, unformatted);
-    print_message(stderr, NSSM_GUI_INVALID_ENVIRONMENT);
-    return -1;
-  }
-
-  if (RegSetValueEx(key, name, 0, REG_MULTI_SZ, (const unsigned char *) unformatted, (unsigned long) newlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
-    if (newlen) HeapFree(GetProcessHeap(), 0, unformatted);
-    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
-    return -1;
-  }
-
-  if (newlen) HeapFree(GetProcessHeap(), 0, unformatted);
-  return 1;
-}
-
-static int setting_get_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! param) return -1;
-
-  TCHAR *env = 0;
-  unsigned long envlen;
-  if (get_environment((TCHAR *) service_name, key, (TCHAR *) name, &env, &envlen)) return -1;
-  if (! envlen) return 0;
-
-  TCHAR *formatted;
-  unsigned long newlen;
-  if (format_environment(env, envlen, &formatted, &newlen)) return -1;
-
-  int ret;
-  if (additional) {
-    /* Find named environment variable. */
-    TCHAR *s;
-    size_t len = _tcslen(additional);
-    for (s = env; *s; s++) {
-      /* Look for <additional>=<string> NULL NULL */
-      if (! _tcsnicmp(s, additional, len) && s[len] == _T('=')) {
-        /* Strip <key>= */
-        s += len + 1;
-        ret = value_from_string(name, value, s);
-        HeapFree(GetProcessHeap(), 0, env);
-        return ret;
-      }
-
-      /* Skip this string. */
-      for ( ; *s; s++);
-    }
-    HeapFree(GetProcessHeap(), 0, env);
-    return 0;
-  }
-
-  HeapFree(GetProcessHeap(), 0, env);
-
-  ret = value_from_string(name, value, formatted);
-  if (newlen) HeapFree(GetProcessHeap(), 0, formatted);
-  return ret;
-}
-
-static int setting_set_priority(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! param) return -1;
-
-  TCHAR *priority_string;
-  int i;
-  long error;
-
-  if (value && value->string) priority_string = value->string;
-  else if (default_value) priority_string = (TCHAR *) default_value;
-  else {
-    error = RegDeleteValue(key, name);
-    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-    return -1;
-  }
-
-  for (i = 0; priority_strings[i]; i++) {
-    if (! str_equiv(priority_strings[i], priority_string)) continue;
-
-    if (default_value && str_equiv(priority_string, (TCHAR *) default_value)) {
-      error = RegDeleteValue(key, name);
-      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
-      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
-      return -1;
-    }
-
-    if (set_number(key, (TCHAR *) name, priority_index_to_constant(i))) return -1;
-    return 1;
-  }
-
-  print_message(stderr, NSSM_MESSAGE_INVALID_PRIORITY, priority_string);
-  for (i = 0; priority_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), priority_strings[i]);
-
-  return -1;
-}
-
-static int setting_get_priority(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  HKEY key = (HKEY) param;
-  if (! param) return -1;
-
-  unsigned long constant;
-  switch (get_number(key, (TCHAR *) name, &constant, false)) {
-    case 0: return value_from_string(name, value, (const TCHAR *) default_value);
-    case -1: return -1;
-  }
-
-  return value_from_string(name, value, priority_strings[priority_constant_to_index(constant)]);
-}
-
-/* Functions to manage native service settings. */
-int native_set_description(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  TCHAR *description = 0;
-  if (value) description = value->string;
-  if (set_service_description(service_name, service_handle, description)) return -1;
-
-  if (description && description[0]) return 1;
-
-  return 0;
-}
-
-int native_get_description(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  TCHAR buffer[VALUE_LENGTH];
-  if (get_service_description(service_name, service_handle, _countof(buffer), buffer)) return -1;
-
-  if (buffer[0]) return value_from_string(name, value, buffer);
-  value->string = 0;
-
-  return 0;
-}
-
-int native_set_displayname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  TCHAR *displayname = 0;
-  if (value && value->string) displayname = value->string;
-  else displayname = (TCHAR *) service_name;
-
-  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, displayname)) {
-    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
-    return -1;
-  }
-
-  /*
-    If the display name and service name differ only in case,
-    ChangeServiceConfig() will return success but the display name will be
-    set to the service name, NOT the value passed to the function.
-    This appears to be a quirk of Windows rather than a bug here.
-  */
-  if (displayname != service_name && ! str_equiv(displayname, service_name)) return 1;
-
-  return 0;
-}
-
-int native_get_displayname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-  if (! qsc) return -1;
-
-  int ret = value_from_string(name, value, qsc->lpDisplayName);
-  HeapFree(GetProcessHeap(), 0, qsc);
-
-  return ret;
-}
-
-int native_set_imagepath(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  /* It makes no sense to try to reset the image path. */
-  if (! value || ! value->string) {
-    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
-    return -1;
-  }
-
-  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, value->string, 0, 0, 0, 0, 0, 0)) {
-    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
-    return -1;
-  }
-
-  return 1;
-}
-
-int native_get_imagepath(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-  if (! qsc) return -1;
-
-  int ret = value_from_string(name, value, qsc->lpBinaryPathName);
-  HeapFree(GetProcessHeap(), 0, qsc);
-
-  return ret;
-}
-
-int native_set_name(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  print_message(stderr, NSSM_MESSAGE_CANNOT_RENAME_SERVICE);
-  return -1;
-}
-
-int native_get_name(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  return value_from_string(name, value, service_name);
-}
-
-int native_set_objectname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  /*
-    Logical syntax is: nssm set <service> ObjectName <username> <password>
-    That means the username is actually passed in the additional parameter.
-  */
-  bool localsystem = true;
-  TCHAR *username = NSSM_LOCALSYSTEM_ACCOUNT;
-  TCHAR *password = 0;
-  if (additional) {
-    if (! str_equiv(additional, NSSM_LOCALSYSTEM_ACCOUNT)) {
-      localsystem = false;
-      username = (TCHAR *) additional;
-      if (value && value->string) password = value->string;
-      else {
-        /* We need a password if the account is not LOCALSYSTEM. */
-        print_message(stderr, NSSM_MESSAGE_MISSING_PASSWORD, name);
-        return -1;
-      }
-    }
-  }
-
-  /*
-    ChangeServiceConfig() will fail to set the username if the service is set
-    to interact with the desktop.
-  */
-  unsigned long type = SERVICE_NO_CHANGE;
-  if (! localsystem) {
-    QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-    if (! qsc) {
-      if (password) SecureZeroMemory(password, _tcslen(password) * sizeof(TCHAR));
-      return -1;
-    }
-
-    type = qsc->dwServiceType & ~SERVICE_INTERACTIVE_PROCESS;
-    HeapFree(GetProcessHeap(), 0, qsc);
-  }
-
-  if (grant_logon_as_service(username)) {
-    if (password) SecureZeroMemory(password, _tcslen(password) * sizeof(TCHAR));
-    print_message(stderr, NSSM_MESSAGE_GRANT_LOGON_AS_SERVICE_FAILED, username);
-    return -1;
-  }
-
-  if (! ChangeServiceConfig(service_handle, type, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, username, password, 0)) {
-    if (password) SecureZeroMemory(password, _tcslen(password) * sizeof(TCHAR));
-    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
-    return -1;
-  }
-  if (password) SecureZeroMemory(password, _tcslen(password) * sizeof(TCHAR));
-
-  if (localsystem) return 0;
-
-  return 1;
-}
-
-int native_get_objectname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-  if (! qsc) return -1;
-
-  int ret = value_from_string(name, value, qsc->lpServiceStartName);
-  HeapFree(GetProcessHeap(), 0, qsc);
-
-  return ret;
-}
-
-int native_set_startup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  /* It makes no sense to try to reset the startup type. */
-  if (! value || ! value->string) {
-    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
-    return -1;
-  }
-
-  /* Map NSSM_STARTUP_* constant to Windows SERVICE_*_START constant. */
-  int service_startup = -1;
-  int i;
-  for (i = 0; startup_strings[i]; i++) {
-    if (str_equiv(value->string, startup_strings[i])) {
-      service_startup = i;
-      break;
-    }
-  }
-
-  if (service_startup < 0) {
-    print_message(stderr, NSSM_MESSAGE_INVALID_SERVICE_STARTUP, value->string);
-    for (i = 0; startup_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), startup_strings[i]);
-    return -1;
-  }
-
-  unsigned long startup;
-  switch (service_startup) {
-    case NSSM_STARTUP_MANUAL: startup = SERVICE_DEMAND_START; break;
-    case NSSM_STARTUP_DISABLED: startup = SERVICE_DISABLED; break;
-    default: startup = SERVICE_AUTO_START;
-  }
-
-  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, startup, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, 0)) {
-    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
-    return -1;
-  }
-
-  SERVICE_DELAYED_AUTO_START_INFO delayed;
-  ZeroMemory(&delayed, sizeof(delayed));
-  if (service_startup == NSSM_STARTUP_DELAYED) delayed.fDelayedAutostart = 1;
-  else delayed.fDelayedAutostart = 0;
-  if (! ChangeServiceConfig2(service_handle, SERVICE_CONFIG_DELAYED_AUTO_START_INFO, &delayed)) {
-    unsigned long error = GetLastError();
-    /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */
-    if (error != ERROR_INVALID_LEVEL) {
-      log_event(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_SERVICE_CONFIG_DELAYED_AUTO_START_INFO_FAILED, service_name, error_string(error), 0);
-    }
-  }
-
-  return 1;
-}
-
-int native_get_startup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-  if (! qsc) return -1;
-
-  unsigned long startup;
-  int ret = get_service_startup(service_name, service_handle, qsc, &startup);
-  HeapFree(GetProcessHeap(), 0, qsc);
-
-  if (ret) return -1;
-
-  unsigned long i;
-  for (i = 0; startup_strings[i]; i++);
-  if (startup >= i) return -1;
-
-  return value_from_string(name, value, startup_strings[startup]);
-}
-
-int native_set_type(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  /* It makes no sense to try to reset the service type. */
-  if (! value || ! value->string) {
-    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
-    return -1;
-  }
-
-  /*
-    We can only manage services of type SERVICE_WIN32_OWN_PROCESS
-    and SERVICE_INTERACTIVE_PROCESS.
-  */
-  unsigned long type = SERVICE_WIN32_OWN_PROCESS;
-  if (str_equiv(value->string, NSSM_INTERACTIVE_PROCESS)) type |= SERVICE_INTERACTIVE_PROCESS;
-  else if (! str_equiv(value->string, NSSM_WIN32_OWN_PROCESS)) {
-    print_message(stderr, NSSM_MESSAGE_INVALID_SERVICE_TYPE, value->string);
-    _ftprintf(stderr, _T("%s\n"), NSSM_WIN32_OWN_PROCESS);
-    _ftprintf(stderr, _T("%s\n"), NSSM_INTERACTIVE_PROCESS);
-    return -1;
-  }
-
-  /*
-    ChangeServiceConfig() will fail if the service runs under an account
-    other than LOCALSYSTEM and we try to make it interactive.
-  */
-  if (type & SERVICE_INTERACTIVE_PROCESS) {
-    QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-    if (! qsc) return -1;
-
-    if (! str_equiv(qsc->lpServiceStartName, NSSM_LOCALSYSTEM_ACCOUNT)) {
-      HeapFree(GetProcessHeap(), 0, qsc);
-      print_message(stderr, NSSM_MESSAGE_INTERACTIVE_NOT_LOCALSYSTEM, value->string, service_name, NSSM_LOCALSYSTEM_ACCOUNT);
-      return -1;
-    }
-
-    HeapFree(GetProcessHeap(), 0, qsc);
-  }
-
-  if (! ChangeServiceConfig(service_handle, type, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, 0)) {
-    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
-    return -1;
-  }
-
-  return 1;
-}
-
-int native_get_type(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
-  SC_HANDLE service_handle = (SC_HANDLE) param;
-  if (! service_handle) return -1;
-
-  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
-  if (! qsc) return -1;
-
-  value->numeric = qsc->dwServiceType;
-  HeapFree(GetProcessHeap(), 0, qsc);
-
-  const TCHAR *string;
-  switch (value->numeric) {
-    case SERVICE_KERNEL_DRIVER: string = NSSM_KERNEL_DRIVER; break;
-    case SERVICE_FILE_SYSTEM_DRIVER: string = NSSM_FILE_SYSTEM_DRIVER; break;
-    case SERVICE_WIN32_OWN_PROCESS: string = NSSM_WIN32_OWN_PROCESS; break;
-    case SERVICE_WIN32_SHARE_PROCESS: string = NSSM_WIN32_SHARE_PROCESS; break;
-    case SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS: string = NSSM_INTERACTIVE_PROCESS; break;
-    case SERVICE_WIN32_SHARE_PROCESS|SERVICE_INTERACTIVE_PROCESS: string = NSSM_SHARE_INTERACTIVE_PROCESS; break;
-    default: string = NSSM_UNKNOWN;
-  }
-
-  return value_from_string(name, value, string);
-}
-
-int set_setting(const TCHAR *service_name, HKEY key, settings_t *setting, value_t *value, const TCHAR *additional) {
-  if (! key) return -1;
-  int ret;
-
-  if (setting->set) ret = setting->set(service_name, (void *) key, setting->name, setting->default_value, value, additional);
-  else ret = -1;
-
-  if (! ret) print_message(stdout, NSSM_MESSAGE_RESET_SETTING, setting->name, service_name);
-  else if (ret > 0) print_message(stdout, NSSM_MESSAGE_SET_SETTING, setting->name, service_name);
-  else print_message(stderr, NSSM_MESSAGE_SET_SETTING_FAILED, setting->name, service_name);
-
-  return ret;
-}
-
-int set_setting(const TCHAR *service_name, SC_HANDLE service_handle, settings_t *setting, value_t *value, const TCHAR *additional) {
-  if (! service_handle) return -1;
-
-  int ret;
-  if (setting->set) ret = setting->set(service_name, service_handle, setting->name, setting->default_value, value, additional);
-  else ret = -1;
-
-  if (! ret) print_message(stdout, NSSM_MESSAGE_RESET_SETTING, setting->name, service_name);
-  else if (ret > 0) print_message(stdout, NSSM_MESSAGE_SET_SETTING, setting->name, service_name);
-  else print_message(stderr, NSSM_MESSAGE_SET_SETTING_FAILED, setting->name, service_name);
-
-  return ret;
-}
-
-/*
-  Returns:  1 if the value was retrieved.
-            0 if the default value was retrieved.
-           -1 on error.
-*/
-int get_setting(const TCHAR *service_name, HKEY key, settings_t *setting, value_t *value, const TCHAR *additional) {
-  if (! key) return -1;
-  int ret;
-
-  switch (setting->type) {
-    case REG_EXPAND_SZ:
-    case REG_MULTI_SZ:
-    case REG_SZ:
-      value->string = (TCHAR *) setting->default_value;
-      if (setting->get) ret = setting->get(service_name, (void *) key, setting->name, setting->default_value, value, additional);
-      else ret = -1;
-      break;
-
-    case REG_DWORD:
-      value->numeric = (unsigned long) setting->default_value;
-      if (setting->get) ret = setting->get(service_name, (void *) key, setting->name, setting->default_value, value, additional);
-      else ret = -1;
-      break;
-
-    default:
-      ret = -1;
-      break;
-  }
-
-  if (ret < 0) print_message(stderr, NSSM_MESSAGE_GET_SETTING_FAILED, setting->name, service_name);
-
-  return ret;
-}
-
-int get_setting(const TCHAR *service_name, SC_HANDLE service_handle, settings_t *setting, value_t *value, const TCHAR *additional) {
-  if (! service_handle) return -1;
-  return setting->get(service_name, service_handle, setting->name, 0, value, additional);
-}
-
-settings_t settings[] = {
-  { NSSM_REG_EXE, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_FLAGS, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_DIR, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_EXIT, REG_SZ, (void *) exit_action_strings[NSSM_EXIT_RESTART], false, ADDITIONAL_MANDATORY, setting_set_exit_action, setting_get_exit_action },
-  { NSSM_REG_AFFINITY, REG_SZ, 0, false, 0, setting_set_affinity, setting_get_affinity },
-  { NSSM_REG_ENV, REG_MULTI_SZ, NULL, false, ADDITIONAL_CRLF, setting_set_environment, setting_get_environment },
-  { NSSM_REG_ENV_EXTRA, REG_MULTI_SZ, NULL, false, ADDITIONAL_CRLF, setting_set_environment, setting_get_environment },
-  { NSSM_REG_PRIORITY, REG_SZ, (void *) priority_strings[NSSM_NORMAL_PRIORITY], false, 0, setting_set_priority, setting_get_priority },
-  { NSSM_REG_RESTART_DELAY, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDIN, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_STDIN NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDIN_SHARING, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDIN NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDIN_DISPOSITION, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDIN NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDIN_FLAGS, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDOUT, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_STDOUT NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDOUT_SHARING, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDOUT NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDOUT_DISPOSITION, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDOUT NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDOUT_FLAGS, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDERR, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string },
-  { NSSM_REG_STDERR NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDERR_SHARING, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDERR NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDERR_DISPOSITION, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STDERR NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDERR_FLAGS, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_STOP_METHOD_SKIP, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_CONSOLE_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_KILL_WINDOW_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_WINDOW_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_KILL_THREADS_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_THREADS_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_THROTTLE, REG_DWORD, (void *) NSSM_RESET_THROTTLE_RESTART, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_ROTATE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_ROTATE_ONLINE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_ROTATE_SECONDS, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_ROTATE_BYTES_LOW, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_REG_ROTATE_BYTES_HIGH, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number },
-  { NSSM_NATIVE_DESCRIPTION, REG_SZ, _T(""), true, 0, native_set_description, native_get_description },
-  { NSSM_NATIVE_DISPLAYNAME, REG_SZ, NULL, true, 0, native_set_displayname, native_get_displayname },
-  { NSSM_NATIVE_IMAGEPATH, REG_EXPAND_SZ, NULL, true, 0, native_set_imagepath, native_get_imagepath },
-  { NSSM_NATIVE_OBJECTNAME, REG_SZ, NSSM_LOCALSYSTEM_ACCOUNT, true, ADDITIONAL_SETTING, native_set_objectname, native_get_objectname },
-  { NSSM_NATIVE_NAME, REG_SZ, NULL, true, 0, native_set_name, native_get_name },
-  { NSSM_NATIVE_STARTUP, REG_SZ, NULL, true, 0, native_set_startup, native_get_startup },
-  { NSSM_NATIVE_TYPE, REG_SZ, NULL, true, 0, native_set_type, native_get_type },
-  { NULL, NULL, NULL, NULL, NULL }
-};
+#include "nssm.h"
+/* XXX: (value && value->string) is probably bogus because value is probably never null */
+
+/* Affinity. */
+#define NSSM_AFFINITY_ALL _T("All")
+/* Default value. */
+#define NSSM_DEFAULT_STRING _T("Default")
+
+extern const TCHAR *exit_action_strings[];
+extern const TCHAR *startup_strings[];
+extern const TCHAR *priority_strings[];
+extern const TCHAR *hook_event_strings[];
+extern const TCHAR *hook_action_strings[];
+
+/* Does the parameter refer to the default value of the setting? */
+static inline int is_default(const TCHAR *value) {
+  return (str_equiv(value, NSSM_DEFAULT_STRING) || str_equiv(value, _T("*")) || ! value[0]);
+}
+
+/* What type of parameter is it parameter? */
+static inline bool is_string_type(const unsigned long type) {
+  return (type == REG_MULTI_SZ || type == REG_EXPAND_SZ || type == REG_SZ);
+}
+static inline bool is_numeric_type(const unsigned long type) {
+  return (type == REG_DWORD);
+}
+
+static int value_from_string(const TCHAR *name, value_t *value, const TCHAR *string) {
+  size_t len = _tcslen(string);
+  if (! len++) {
+    value->string = 0;
+    return 0;
+  }
+
+  value->string = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));
+  if (! value->string) {
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, name, _T("value_from_string()"));
+    return -1;
+  }
+
+  if (_sntprintf_s(value->string, len, _TRUNCATE, _T("%s"), string) < 0) {
+    HeapFree(GetProcessHeap(), 0, value->string);
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, name, _T("value_from_string()"));
+    return -1;
+  }
+
+  return 1;
+}
+
+/* Functions to manage NSSM-specific settings in the registry. */
+static int setting_set_number(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! key) return -1;
+
+  unsigned long number;
+  long error;
+
+  /* Resetting to default? */
+  if (! value || ! value->string) {
+    error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+  if (str_number(value->string, &number)) return -1;
+
+  if (default_value && number == PtrToUlong(default_value)) {
+    error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+
+  if (set_number(key, (TCHAR *) name, number)) return -1;
+
+  return 1;
+}
+
+static int setting_get_number(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  return get_number(key, (TCHAR *) name, &value->numeric, false);
+}
+
+static int setting_set_string(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! key) return -1;
+
+  long error;
+
+  /* Resetting to default? */
+  if (! value || ! value->string) {
+    if (default_value) value->string = (TCHAR *) default_value;
+    else {
+      error = RegDeleteValue(key, name);
+      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+      return -1;
+    }
+  }
+  if (default_value && _tcslen((TCHAR *) default_value) && str_equiv(value->string, (TCHAR *) default_value)) {
+    error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+
+  if (set_expand_string(key, (TCHAR *) name, value->string)) return -1;
+
+  return 1;
+}
+
+static int setting_get_string(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  TCHAR buffer[VALUE_LENGTH];
+
+  if (get_string(key, (TCHAR *) name, (TCHAR *) buffer, (unsigned long) sizeof(buffer), false, false, false)) return -1;
+
+  return value_from_string(name, value, buffer);
+}
+
+static int setting_not_dumpable(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  return 0;
+}
+
+static int setting_dump_string(const TCHAR *service_name, void *param, const TCHAR *name, const value_t *value, const TCHAR *additional) {
+  TCHAR quoted_service_name[SERVICE_NAME_LENGTH * 2];
+  TCHAR quoted_value[VALUE_LENGTH * 2];
+  TCHAR quoted_additional[VALUE_LENGTH * 2];
+  TCHAR quoted_nssm[EXE_LENGTH * 2];
+
+  if (quote(service_name, quoted_service_name, _countof(quoted_service_name))) return 1;
+
+  if (additional) {
+    if (_tcslen(additional)) {
+      if (quote(additional, quoted_additional, _countof(quoted_additional))) return 3;
+    }
+  else _sntprintf_s(quoted_additional, _countof(quoted_additional), _TRUNCATE, _T("\"\""));
+  }
+  else quoted_additional[0] = _T('\0');
+
+  unsigned long type = (unsigned long) param;
+  if (is_string_type(type)) {
+    if (_tcslen(value->string)) {
+      if (quote(value->string, quoted_value, _countof(quoted_value))) return 2;
+    }
+    else _sntprintf_s(quoted_value, _countof(quoted_value), _TRUNCATE, _T("\"\""));
+  }
+  else if (is_numeric_type(type)) _sntprintf_s(quoted_value, _countof(quoted_value), _TRUNCATE, _T("%lu"), value->numeric);
+  else return 2;
+
+  if (quote(nssm_exe(), quoted_nssm, _countof(quoted_nssm))) return 3;
+  if (_tcslen(quoted_additional)) _tprintf(_T("%s set %s %s %s %s\n"), quoted_nssm, quoted_service_name, name, quoted_additional, quoted_value);
+  else _tprintf(_T("%s set %s %s %s\n"), quoted_nssm, quoted_service_name, name, quoted_value);
+  return 0;
+}
+
+static int setting_set_exit_action(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  unsigned long exitcode;
+  TCHAR *code;
+  TCHAR action_string[ACTION_LEN];
+
+  if (additional) {
+    /* Default action? */
+    if (is_default(additional)) code = 0;
+    else {
+      if (str_number(additional, &exitcode)) return -1;
+      code = (TCHAR *) additional;
+    }
+  }
+
+  HKEY key = open_registry(service_name, name, KEY_WRITE);
+  if (! key) return -1;
+
+  long error;
+  int ret = 1;
+
+  /* Resetting to default? */
+  if (value && value->string) _sntprintf_s(action_string, _countof(action_string), _TRUNCATE, _T("%s"), value->string);
+  else {
+    if (code) {
+      /* Delete explicit action. */
+      error = RegDeleteValue(key, code);
+      RegCloseKey(key);
+      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, code, service_name, error_string(error));
+      return -1;
+    }
+    else {
+      /* Explicitly keep the default action. */
+      if (default_value) _sntprintf_s(action_string, _countof(action_string), _TRUNCATE, _T("%s"), (TCHAR *) default_value);
+      ret = 0;
+    }
+  }
+
+  /* Validate the string. */
+  for (int i = 0; exit_action_strings[i]; i++) {
+    if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
+      if (default_value && str_equiv(action_string, (TCHAR *) default_value)) ret = 0;
+      if (RegSetValueEx(key, code, 0, REG_SZ, (const unsigned char *) exit_action_strings[i], (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
+        print_message(stderr, NSSM_MESSAGE_SETVALUE_FAILED, code, service_name, error_string(GetLastError()));
+        RegCloseKey(key);
+        return -1;
+      }
+
+      RegCloseKey(key);
+      return ret;
+    }
+  }
+
+  print_message(stderr, NSSM_MESSAGE_INVALID_EXIT_ACTION, action_string);
+  for (int i = 0; exit_action_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), exit_action_strings[i]);
+
+  return -1;
+}
+
+static int setting_get_exit_action(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  unsigned long exitcode = 0;
+  unsigned long *code = 0;
+
+  if (additional) {
+    if (! is_default(additional)) {
+      if (str_number(additional, &exitcode)) return -1;
+      code = &exitcode;
+    }
+  }
+
+  TCHAR action_string[ACTION_LEN];
+  bool default_action;
+  if (get_exit_action(service_name, code, action_string, &default_action)) return -1;
+
+  value_from_string(name, value, action_string);
+
+  if (default_action && ! _tcsnicmp((const TCHAR *) action_string, (TCHAR *) default_value, ACTION_LEN)) return 0;
+  return 1;
+}
+
+static int setting_dump_exit_action(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  int errors = 0;
+  HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
+  if (! key) return -1;
+
+  TCHAR code[16];
+  unsigned long index = 0;
+  while (true) {
+    int ret = enumerate_registry_values(key, &index, code, _countof(code));
+    if (ret == ERROR_NO_MORE_ITEMS) break;
+    if (ret != ERROR_SUCCESS) continue;
+    bool valid = true;
+    int i;
+    for (i = 0; i < _countof(code); i++) {
+      if (! code[i]) break;
+      if (code[i] >= _T('0') || code[i] <= _T('9')) continue;
+      valid = false;
+      break;
+    }
+    if (! valid) continue;
+
+    TCHAR *additional = (code[i]) ? code : NSSM_DEFAULT_STRING;
+
+    ret = setting_get_exit_action(service_name, 0, name, default_value, value, additional);
+    if (ret == 1) {
+      if (setting_dump_string(service_name, (void *) REG_SZ, name, value, additional)) errors++;
+    }
+    else if (ret < 0) errors++;
+  }
+
+  if (errors) return -1;
+  return 0;
+}
+
+static inline bool split_hook_name(const TCHAR *hook_name, TCHAR *hook_event, TCHAR *hook_action) {
+  TCHAR *s;
+
+  for (s = (TCHAR *) hook_name; *s; s++) {
+    if (*s == _T('/')) {
+      *s = _T('\0');
+      _sntprintf_s(hook_event, HOOK_NAME_LENGTH, _TRUNCATE, _T("%s"), hook_name);
+      *s++ = _T('/');
+      _sntprintf_s(hook_action, HOOK_NAME_LENGTH, _TRUNCATE, _T("%s"), s);
+      return valid_hook_name(hook_event, hook_action, false);
+    }
+  }
+
+  print_message(stderr, NSSM_MESSAGE_INVALID_HOOK_NAME, hook_name);
+  return false;
+}
+
+static int setting_set_hook(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  TCHAR hook_event[HOOK_NAME_LENGTH];
+  TCHAR hook_action[HOOK_NAME_LENGTH];
+  if (! split_hook_name(additional, hook_event, hook_action)) return -1;
+
+  TCHAR *cmd;
+  if (value && value->string) cmd = value->string;
+  else cmd = _T("");
+
+  if (set_hook(service_name, hook_event, hook_action, cmd)) return -1;
+  if (! _tcslen(cmd)) return 0;
+  return 1;
+}
+
+static int setting_get_hook(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  TCHAR hook_event[HOOK_NAME_LENGTH];
+  TCHAR hook_action[HOOK_NAME_LENGTH];
+  if (! split_hook_name(additional, hook_event, hook_action)) return -1;
+
+  TCHAR cmd[CMD_LENGTH];
+  if (get_hook(service_name, hook_event, hook_action, cmd, sizeof(cmd))) return -1;
+
+  value_from_string(name, value, cmd);
+
+  if (! _tcslen(cmd)) return 0;
+  return 1;
+}
+
+static int setting_dump_hooks(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  int i, j;
+
+  int errors = 0;
+  for (i = 0; hook_event_strings[i]; i++) {
+    const TCHAR *hook_event = hook_event_strings[i];
+    for (j = 0; hook_action_strings[j]; j++) {
+      const TCHAR *hook_action = hook_action_strings[j];
+      if (! valid_hook_name(hook_event, hook_action, true)) continue;
+
+      TCHAR hook_name[HOOK_NAME_LENGTH];
+      _sntprintf_s(hook_name, _countof(hook_name), _TRUNCATE, _T("%s/%s"), hook_event, hook_action);
+
+      int ret = setting_get_hook(service_name, param, name, default_value, value, hook_name);
+      if (ret != 1) {
+        if (ret < 0) errors++;
+        continue;
+      }
+
+      if (setting_dump_string(service_name, (void *) REG_SZ, name, value, hook_name)) errors++;
+    }
+  }
+
+  if (errors) return -1;
+  return 0;
+}
+
+static int setting_set_affinity(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! key) return -1;
+
+  long error;
+  __int64 mask;
+  __int64 system_affinity = 0LL;
+
+  if (value && value->string) {
+    DWORD_PTR affinity;
+    if (! GetProcessAffinityMask(GetCurrentProcess(), &affinity, (DWORD_PTR *) &system_affinity)) system_affinity = ~0;
+
+    if (is_default(value->string) || str_equiv(value->string, NSSM_AFFINITY_ALL)) mask = 0LL;
+    else if (affinity_string_to_mask(value->string, &mask)) {
+      print_message(stderr, NSSM_MESSAGE_BOGUS_AFFINITY_MASK, value->string, num_cpus() - 1);
+      return -1;
+    }
+  }
+  else mask = 0LL;
+
+  if (! mask) {
+    error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+
+  /* Canonicalise. */
+  TCHAR *canon = 0;
+  if (affinity_mask_to_string(mask, &canon)) canon = value->string;
+
+  __int64 effective_affinity = mask & system_affinity;
+  if (effective_affinity != mask) {
+    /* Requested CPUs did not intersect with available CPUs? */
+    if (! effective_affinity) mask = effective_affinity = system_affinity;
+
+    TCHAR *system = 0;
+    if (! affinity_mask_to_string(system_affinity, &system)) {
+      TCHAR *effective = 0;
+      if (! affinity_mask_to_string(effective_affinity, &effective)) {
+        print_message(stderr, NSSM_MESSAGE_EFFECTIVE_AFFINITY_MASK, value->string, system, effective);
+        HeapFree(GetProcessHeap(), 0, effective);
+      }
+      HeapFree(GetProcessHeap(), 0, system);
+    }
+  }
+
+  if (RegSetValueEx(key, name, 0, REG_SZ, (const unsigned char *) canon, (unsigned long) (_tcslen(canon) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
+    if (canon != value->string) HeapFree(GetProcessHeap(), 0, canon);
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, name, error_string(GetLastError()), 0);
+    return -1;
+  }
+
+  if (canon != value->string) HeapFree(GetProcessHeap(), 0, canon);
+  return 1;
+}
+
+static int setting_get_affinity(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! key) return -1;
+
+  unsigned long type;
+  TCHAR *buffer = 0;
+  unsigned long buflen = 0;
+
+  int ret = RegQueryValueEx(key, name, 0, &type, 0, &buflen);
+  if (ret == ERROR_FILE_NOT_FOUND) {
+    if (value_from_string(name, value, NSSM_AFFINITY_ALL) == 1) return 0;
+    return -1;
+  }
+  if (ret != ERROR_SUCCESS) return -1;
+
+  if (type != REG_SZ) return -1;
+
+  buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, buflen);
+  if (! buffer) {
+    print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("affinity"), _T("setting_get_affinity"));
+    return -1;
+  }
+
+  if (get_string(key, (TCHAR *) name, buffer, buflen, false, false, true)) {
+    HeapFree(GetProcessHeap(), 0, buffer);
+    return -1;
+  }
+
+  __int64 affinity;
+  if (affinity_string_to_mask(buffer, &affinity)) {
+    print_message(stderr, NSSM_MESSAGE_BOGUS_AFFINITY_MASK, buffer, num_cpus() - 1);
+    HeapFree(GetProcessHeap(), 0, buffer);
+    return -1;
+  }
+
+  HeapFree(GetProcessHeap(), 0, buffer);
+
+  /* Canonicalise. */
+  if (affinity_mask_to_string(affinity, &buffer)) {
+    if (buffer) HeapFree(GetProcessHeap(), 0, buffer);
+    return -1;
+  }
+
+  ret = value_from_string(name, value, buffer);
+  HeapFree(GetProcessHeap(), 0, buffer);
+  return ret;
+}
+
+static int setting_set_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! param) return -1;
+
+  TCHAR *string = 0;
+  TCHAR *unformatted = 0;
+  unsigned long envlen;
+  unsigned long newlen = 0;
+  int op = 0;
+  if (value && value->string && value->string[0]) {
+    string = value->string;
+    switch (string[0]) {
+      case _T('+'): op = 1; break;
+      case _T('-'): op = -1; break;
+      case _T(':'): string++; break;
+    }
+  }
+
+  if (op) {
+    string++;
+    TCHAR *env = 0;
+    if (get_environment((TCHAR *) service_name, key, (TCHAR *) name, &env, &envlen)) return -1;
+    if (env) {
+      int ret;
+      if (op > 0) ret = append_to_environment_block(env, envlen, string, &unformatted, &newlen);
+      else ret = remove_from_environment_block(env, envlen, string, &unformatted, &newlen);
+      if (envlen) HeapFree(GetProcessHeap(), 0, env);
+      if (ret) return -1;
+
+      string = unformatted;
+    }
+    else {
+      /*
+        No existing environment.
+        We can't remove from an empty environment so just treat an add
+        operation as setting a new string.
+      */
+      if (op < 0) return 0;
+      op = 0;
+    }
+  }
+
+  if (! string || ! string[0]) {
+    long error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+
+  if (! op) {
+    if (unformat_double_null(string, (unsigned long) _tcslen(string), &unformatted, &newlen)) return -1;
+  }
+
+  if (test_environment(unformatted)) {
+    HeapFree(GetProcessHeap(), 0, unformatted);
+    print_message(stderr, NSSM_GUI_INVALID_ENVIRONMENT);
+    return -1;
+  }
+
+  if (RegSetValueEx(key, name, 0, REG_MULTI_SZ, (const unsigned char *) unformatted, (unsigned long) newlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
+    if (newlen) HeapFree(GetProcessHeap(), 0, unformatted);
+    log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
+    return -1;
+  }
+
+  if (newlen) HeapFree(GetProcessHeap(), 0, unformatted);
+  return 1;
+}
+
+static int setting_get_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! param) return -1;
+
+  TCHAR *env = 0;
+  unsigned long envlen;
+  if (get_environment((TCHAR *) service_name, key, (TCHAR *) name, &env, &envlen)) return -1;
+  if (! envlen) return 0;
+
+  TCHAR *formatted;
+  unsigned long newlen;
+  if (format_double_null(env, envlen, &formatted, &newlen)) return -1;
+
+  int ret;
+  if (additional) {
+    /* Find named environment variable. */
+    TCHAR *s;
+    size_t len = _tcslen(additional);
+    for (s = env; *s; s++) {
+      /* Look for <additional>=<string> NULL NULL */
+      if (! _tcsnicmp(s, additional, len) && s[len] == _T('=')) {
+        /* Strip <key>= */
+        s += len + 1;
+        ret = value_from_string(name, value, s);
+        HeapFree(GetProcessHeap(), 0, env);
+        return ret;
+      }
+
+      /* Skip this string. */
+      for ( ; *s; s++);
+    }
+    HeapFree(GetProcessHeap(), 0, env);
+    return 0;
+  }
+
+  HeapFree(GetProcessHeap(), 0, env);
+
+  ret = value_from_string(name, value, formatted);
+  if (newlen) HeapFree(GetProcessHeap(), 0, formatted);
+  return ret;
+}
+
+static int setting_dump_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  int errors = 0;
+  HKEY key = (HKEY) param;
+  if (! param) return -1;
+
+  TCHAR *env = 0;
+  unsigned long envlen;
+  if (get_environment((TCHAR *) service_name, key, (TCHAR *) name, &env, &envlen)) return -1;
+  if (! envlen) return 0;
+
+  TCHAR *s;
+  for (s = env; *s; s++) {
+    size_t len = _tcslen(s) + 2;
+    value->string = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));
+    if (! value->string) {
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("dump"), _T("setting_dump_environment"));
+      break;
+    }
+
+    _sntprintf_s(value->string, len, _TRUNCATE, _T("%c%s"), (s > env) ? _T('+') : _T(':'), s);
+    if (setting_dump_string(service_name, (void *) REG_SZ, name, value, 0)) errors++;
+    HeapFree(GetProcessHeap(), 0, value->string);
+    value->string = 0;
+
+    for ( ; *s; s++);
+  }
+
+  HeapFree(GetProcessHeap(), 0, env);
+
+  if (errors) return 1;
+  return 0;
+}
+
+static int setting_set_priority(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! param) return -1;
+
+  TCHAR *priority_string;
+  int i;
+  long error;
+
+  if (value && value->string) priority_string = value->string;
+  else if (default_value) priority_string = (TCHAR *) default_value;
+  else {
+    error = RegDeleteValue(key, name);
+    if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+    print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+    return -1;
+  }
+
+  for (i = 0; priority_strings[i]; i++) {
+    if (! str_equiv(priority_strings[i], priority_string)) continue;
+
+    if (default_value && str_equiv(priority_string, (TCHAR *) default_value)) {
+      error = RegDeleteValue(key, name);
+      if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) return 0;
+      print_message(stderr, NSSM_MESSAGE_REGDELETEVALUE_FAILED, name, service_name, error_string(error));
+      return -1;
+    }
+
+    if (set_number(key, (TCHAR *) name, priority_index_to_constant(i))) return -1;
+    return 1;
+  }
+
+  print_message(stderr, NSSM_MESSAGE_INVALID_PRIORITY, priority_string);
+  for (i = 0; priority_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), priority_strings[i]);
+
+  return -1;
+}
+
+static int setting_get_priority(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = (HKEY) param;
+  if (! param) return -1;
+
+  unsigned long constant;
+  switch (get_number(key, (TCHAR *) name, &constant, false)) {
+    case 0:
+      if (value_from_string(name, value, (const TCHAR *) default_value) == -1) return -1;
+      return 0;
+    case -1: return -1;
+  }
+
+  return value_from_string(name, value, priority_strings[priority_constant_to_index(constant)]);
+}
+
+static int setting_dump_priority(const TCHAR *service_name, void *key_ptr, const TCHAR *name, void *setting_ptr, value_t *value, const TCHAR *additional) {
+  settings_t *setting = (settings_t *) setting_ptr;
+  int ret = setting_get_priority(service_name, key_ptr, name, (void *) setting->default_value, value, 0);
+  if (ret != 1) return ret;
+  return setting_dump_string(service_name, (void *) REG_SZ, name, value, 0);
+}
+
+/* Functions to manage native service settings. */
+static int native_set_dependon(const TCHAR *service_name, SC_HANDLE service_handle, TCHAR **dependencies, unsigned long *dependencieslen, value_t *value, int type) {
+  *dependencieslen = 0;
+  if (! value || ! value->string || ! value->string[0]) return 0;
+
+  TCHAR *string = value->string;
+  unsigned long buflen;
+  int op = 0;
+  switch (string[0]) {
+    case _T('+'): op = 1; break;
+    case _T('-'): op = -1; break;
+    case _T(':'): string++; break;
+  }
+
+  if (op) {
+    string++;
+    TCHAR *buffer = 0;
+    if (get_service_dependencies(service_name, service_handle, &buffer, &buflen, type)) return -1;
+    if (buffer) {
+      int ret;
+      if (op > 0) ret = append_to_dependencies(buffer, buflen, string, dependencies, dependencieslen, type);
+      else ret = remove_from_dependencies(buffer, buflen, string, dependencies, dependencieslen, type);
+      if (buflen) HeapFree(GetProcessHeap(), 0, buffer);
+      return ret;
+    }
+    else {
+      /*
+        No existing list.
+        We can't remove from an empty list so just treat an add
+        operation as setting a new string.
+      */
+      if (op < 0) return 0;
+      op = 0;
+    }
+  }
+
+  if (! op) {
+    TCHAR *unformatted = 0;
+    unsigned long newlen;
+    if (unformat_double_null(string, (unsigned long) _tcslen(string), &unformatted, &newlen)) return -1;
+
+    if (type == DEPENDENCY_GROUPS) {
+      /* Prepend group identifier. */
+      unsigned long missing = 0;
+      TCHAR *canon = unformatted;
+      size_t canonlen = 0;
+      TCHAR *s;
+      for (s = unformatted; *s; s++) {
+        if (*s != SC_GROUP_IDENTIFIER) missing++;
+        size_t len = _tcslen(s);
+        canonlen += len + 1;
+        s += len;
+      }
+
+      if (missing) {
+        /* Missing identifiers plus double NULL terminator. */
+        canonlen += missing + 1;
+
+        canon = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, canonlen * sizeof(TCHAR));
+        if (! canon) {
+          print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("canon"), _T("native_set_dependon"));
+          if (unformatted) HeapFree(GetProcessHeap(), 0, unformatted);
+          return -1;
+        }
+
+        size_t i = 0;
+        for (s = unformatted; *s; s++) {
+          if (*s != SC_GROUP_IDENTIFIER) canon[i++] = SC_GROUP_IDENTIFIER;
+          size_t len = _tcslen(s);
+          memmove(canon + i, s, (len + 1) * sizeof(TCHAR));
+          i += len + 1;
+          s += len;
+        }
+
+        HeapFree(GetProcessHeap(), 0, unformatted);
+        unformatted = canon;
+        newlen = (unsigned long) canonlen;
+      }
+    }
+
+    *dependencies = unformatted;
+    *dependencieslen = newlen;
+  }
+
+  return 0;
+}
+
+static int native_set_dependongroup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /*
+    Get existing service dependencies because we must set both types together.
+  */
+  TCHAR *services_buffer;
+  unsigned long services_buflen;
+  if (get_service_dependencies(service_name, service_handle, &services_buffer, &services_buflen, DEPENDENCY_SERVICES)) return -1;
+
+  if (! value || ! value->string || ! value->string[0]) {
+    if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, services_buffer, 0, 0, 0)) {
+      print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+      if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+      return -1;
+    }
+
+    if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+    return 0;
+  }
+
+  /* Update the group list. */
+  TCHAR *groups_buffer;
+  unsigned long groups_buflen;
+  if (native_set_dependon(service_name, service_handle, &groups_buffer, &groups_buflen, value, DEPENDENCY_GROUPS)) return -1;
+
+  TCHAR *dependencies;
+  if (services_buflen > 2) {
+    dependencies = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, (groups_buflen + services_buflen) * sizeof(TCHAR));
+    if (! dependencies) {
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("dependencies"), _T("native_set_dependongroup"));
+      if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+      if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+      return -1;
+    }
+
+    memmove(dependencies, services_buffer, services_buflen * sizeof(TCHAR));
+    memmove(dependencies + services_buflen - 1, groups_buffer, groups_buflen * sizeof(TCHAR));
+  }
+  else dependencies = groups_buffer;
+
+  int ret = 1;
+  if (set_service_dependencies(service_name, service_handle, dependencies)) ret = -1;
+  if (dependencies != groups_buffer) HeapFree(GetProcessHeap(), 0, dependencies);
+  if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+  if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+
+  return ret;
+}
+
+static int native_get_dependongroup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  TCHAR *buffer;
+  unsigned long buflen;
+  if (get_service_dependencies(service_name, service_handle, &buffer, &buflen, DEPENDENCY_GROUPS)) return -1;
+
+  int ret;
+  if (buflen) {
+    TCHAR *formatted;
+    unsigned long newlen;
+    if (format_double_null(buffer, buflen, &formatted, &newlen)) {
+      HeapFree(GetProcessHeap(), 0, buffer);
+      return -1;
+    }
+
+    ret = value_from_string(name, value, formatted);
+    HeapFree(GetProcessHeap(), 0, formatted);
+    HeapFree(GetProcessHeap(), 0, buffer);
+  }
+  else {
+    value->string = 0;
+    ret = 0;
+  }
+
+  return ret;
+}
+
+static int setting_dump_dependon(const TCHAR *service_name, SC_HANDLE service_handle, const TCHAR *name, int type, value_t *value) {
+  int errors = 0;
+
+  TCHAR *dependencies = 0;
+  unsigned long dependencieslen;
+  if (get_service_dependencies(service_name, service_handle, &dependencies, &dependencieslen, type)) return -1;
+  if (! dependencieslen) return 0;
+
+  TCHAR *s;
+  for (s = dependencies; *s; s++) {
+    size_t len = _tcslen(s) + 2;
+    value->string = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, len * sizeof(TCHAR));
+    if (! value->string) {
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("dump"), _T("setting_dump_dependon"));
+      break;
+    }
+
+    _sntprintf_s(value->string, len, _TRUNCATE, _T("%c%s"), (s > dependencies) ? _T('+') : _T(':'), s);
+    if (setting_dump_string(service_name, (void *) REG_SZ, name, value, 0)) errors++;
+    HeapFree(GetProcessHeap(), 0, value->string);
+    value->string = 0;
+
+    for ( ; *s; s++);
+  }
+
+  HeapFree(GetProcessHeap(), 0, dependencies);
+
+  if (errors) return 1;
+  return 0;
+}
+
+static int native_dump_dependongroup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  return setting_dump_dependon(service_name, (SC_HANDLE) param, name, DEPENDENCY_GROUPS, value);
+}
+
+static int native_set_dependonservice(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /*
+    Get existing group dependencies because we must set both types together.
+  */
+  TCHAR *groups_buffer;
+  unsigned long groups_buflen;
+  if (get_service_dependencies(service_name, service_handle, &groups_buffer, &groups_buflen, DEPENDENCY_GROUPS)) return -1;
+
+  if (! value || ! value->string || ! value->string[0]) {
+    if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, groups_buffer, 0, 0, 0)) {
+      print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+      if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+      return -1;
+    }
+
+    if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+    return 0;
+  }
+
+  /* Update the service list. */
+  TCHAR *services_buffer;
+  unsigned long services_buflen;
+  if (native_set_dependon(service_name, service_handle, &services_buffer, &services_buflen, value, DEPENDENCY_SERVICES)) return -1;
+
+  TCHAR *dependencies;
+  if (groups_buflen > 2) {
+    dependencies = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, (services_buflen + groups_buflen) * sizeof(TCHAR));
+    if (! dependencies) {
+      print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY, _T("dependencies"), _T("native_set_dependonservice"));
+      if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+      if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+      return -1;
+    }
+
+    memmove(dependencies, services_buffer, services_buflen * sizeof(TCHAR));
+    memmove(dependencies + services_buflen - 1, groups_buffer, groups_buflen * sizeof(TCHAR));
+  }
+  else dependencies = services_buffer;
+
+  int ret = 1;
+  if (set_service_dependencies(service_name, service_handle, dependencies)) ret = -1;
+  if (dependencies != services_buffer) HeapFree(GetProcessHeap(), 0, dependencies);
+  if (groups_buffer) HeapFree(GetProcessHeap(), 0, groups_buffer);
+  if (services_buffer) HeapFree(GetProcessHeap(), 0, services_buffer);
+
+  return ret;
+}
+
+static int native_get_dependonservice(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  TCHAR *buffer;
+  unsigned long buflen;
+  if (get_service_dependencies(service_name, service_handle, &buffer, &buflen, DEPENDENCY_SERVICES)) return -1;
+
+  int ret;
+  if (buflen) {
+    TCHAR *formatted;
+    unsigned long newlen;
+    if (format_double_null(buffer, buflen, &formatted, &newlen)) {
+      HeapFree(GetProcessHeap(), 0, buffer);
+      return -1;
+    }
+
+    ret = value_from_string(name, value, formatted);
+    HeapFree(GetProcessHeap(), 0, formatted);
+    HeapFree(GetProcessHeap(), 0, buffer);
+  }
+  else {
+    value->string = 0;
+    ret = 0;
+  }
+
+  return ret;
+}
+
+static int native_dump_dependonservice(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  return setting_dump_dependon(service_name, (SC_HANDLE) param, name, DEPENDENCY_SERVICES, value);
+}
+
+int native_set_description(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  TCHAR *description = 0;
+  if (value) description = value->string;
+  if (set_service_description(service_name, service_handle, description)) return -1;
+
+  if (description && description[0]) return 1;
+
+  return 0;
+}
+
+int native_get_description(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  TCHAR buffer[VALUE_LENGTH];
+  if (get_service_description(service_name, service_handle, _countof(buffer), buffer)) return -1;
+
+  if (buffer[0]) return value_from_string(name, value, buffer);
+  value->string = 0;
+
+  return 0;
+}
+
+int native_set_displayname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  TCHAR *displayname = 0;
+  if (value && value->string) displayname = value->string;
+  else displayname = (TCHAR *) service_name;
+
+  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, displayname)) {
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+    return -1;
+  }
+
+  /*
+    If the display name and service name differ only in case,
+    ChangeServiceConfig() will return success but the display name will be
+    set to the service name, NOT the value passed to the function.
+    This appears to be a quirk of Windows rather than a bug here.
+  */
+  if (displayname != service_name && ! str_equiv(displayname, service_name)) return 1;
+
+  return 0;
+}
+
+int native_get_displayname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+  if (! qsc) return -1;
+
+  int ret = value_from_string(name, value, qsc->lpDisplayName);
+  HeapFree(GetProcessHeap(), 0, qsc);
+
+  return ret;
+}
+
+int native_set_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = open_service_registry(service_name, KEY_SET_VALUE, true);
+  if (! key) return -1;
+
+  int ret = setting_set_environment(service_name, (void *) key, name, default_value, value, additional);
+  RegCloseKey(key);
+  return ret;
+}
+
+int native_get_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = open_service_registry(service_name, KEY_READ, true);
+  if (! key) return -1;
+
+  ZeroMemory(value, sizeof(value_t));
+  int ret = setting_get_environment(service_name, (void *) key, name, default_value, value, additional);
+  RegCloseKey(key);
+  return ret;
+}
+
+static int native_dump_environment(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  HKEY key = open_service_registry(service_name, KEY_READ, true);
+  if (! key) return -1;
+
+  int ret = setting_dump_environment(service_name, (void *) key, name, default_value, value, additional);
+  RegCloseKey(key);
+  return ret;
+}
+
+int native_set_imagepath(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /* It makes no sense to try to reset the image path. */
+  if (! value || ! value->string) {
+    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
+    return -1;
+  }
+
+  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, value->string, 0, 0, 0, 0, 0, 0)) {
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+    return -1;
+  }
+
+  return 1;
+}
+
+int native_get_imagepath(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+  if (! qsc) return -1;
+
+  int ret = value_from_string(name, value, qsc->lpBinaryPathName);
+  HeapFree(GetProcessHeap(), 0, qsc);
+
+  return ret;
+}
+
+int native_set_name(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  print_message(stderr, NSSM_MESSAGE_CANNOT_RENAME_SERVICE);
+  return -1;
+}
+
+int native_get_name(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  return value_from_string(name, value, service_name);
+}
+
+int native_set_objectname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /*
+    Logical syntax is: nssm set <service> ObjectName <username> <password>
+    That means the username is actually passed in the additional parameter.
+  */
+  bool localsystem = false;
+  bool virtual_account = false;
+  TCHAR *username = NSSM_LOCALSYSTEM_ACCOUNT;
+  TCHAR *password = 0;
+  if (additional) {
+    username = (TCHAR *) additional;
+    if (value && value->string) password = value->string;
+  }
+  else if (value && value->string) username = value->string;
+
+  const TCHAR *well_known = well_known_username(username);
+  size_t passwordsize = 0;
+  if (well_known) {
+    if (str_equiv(well_known, NSSM_LOCALSYSTEM_ACCOUNT)) localsystem = true;
+    username = (TCHAR *) well_known;
+    password = _T("");
+  }
+  else if (is_virtual_account(service_name, username)) virtual_account = true;
+  else if (! password) {
+    /* We need a password if the account requires it. */
+    print_message(stderr, NSSM_MESSAGE_MISSING_PASSWORD, name);
+    return -1;
+  }
+  else passwordsize = _tcslen(password) * sizeof(TCHAR);
+
+  /*
+    ChangeServiceConfig() will fail to set the username if the service is set
+    to interact with the desktop.
+  */
+  unsigned long type = SERVICE_NO_CHANGE;
+  if (! localsystem) {
+    QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+    if (! qsc) {
+      if (passwordsize) SecureZeroMemory(password, passwordsize);
+      return -1;
+    }
+
+    type = qsc->dwServiceType & ~SERVICE_INTERACTIVE_PROCESS;
+    HeapFree(GetProcessHeap(), 0, qsc);
+  }
+
+  if (! well_known && ! virtual_account) {
+    if (grant_logon_as_service(username)) {
+      if (passwordsize) SecureZeroMemory(password, passwordsize);
+      print_message(stderr, NSSM_MESSAGE_GRANT_LOGON_AS_SERVICE_FAILED, username);
+      return -1;
+    }
+  }
+
+  if (! ChangeServiceConfig(service_handle, type, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, username, password, 0)) {
+    if (passwordsize) SecureZeroMemory(password, passwordsize);
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+    return -1;
+  }
+
+  if (passwordsize) SecureZeroMemory(password, passwordsize);
+
+  if (localsystem) return 0;
+
+  return 1;
+}
+
+int native_get_objectname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+  if (! qsc) return -1;
+
+  int ret = value_from_string(name, value, qsc->lpServiceStartName);
+  HeapFree(GetProcessHeap(), 0, qsc);
+
+  return ret;
+}
+
+int native_dump_objectname(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  int ret = native_get_objectname(service_name, param, name, default_value, value, additional);
+  if (ret != 1) return ret;
+
+  /* Properly checking for a virtual account requires the actual service name. */
+  if (! _tcsnicmp(NSSM_VIRTUAL_SERVICE_ACCOUNT_DOMAIN, value->string, _tcslen(NSSM_VIRTUAL_SERVICE_ACCOUNT_DOMAIN))) {
+    TCHAR *name = virtual_account(service_name);
+    if (! name) return -1;
+    HeapFree(GetProcessHeap(), 0, value->string);
+    value->string = name;
+  }
+  else {
+    /* Do we need to dump a dummy password? */
+    if (! well_known_username(value->string)) {
+      /* Parameters are the other way round. */
+      value_t inverted;
+      inverted.string = _T("****");
+      return setting_dump_string(service_name, (void *) REG_SZ, name, &inverted, value->string);
+    }
+  }
+  return setting_dump_string(service_name, (void *) REG_SZ, name, value, 0);
+}
+
+int native_set_startup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /* It makes no sense to try to reset the startup type. */
+  if (! value || ! value->string) {
+    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
+    return -1;
+  }
+
+  /* Map NSSM_STARTUP_* constant to Windows SERVICE_*_START constant. */
+  int service_startup = -1;
+  int i;
+  for (i = 0; startup_strings[i]; i++) {
+    if (str_equiv(value->string, startup_strings[i])) {
+      service_startup = i;
+      break;
+    }
+  }
+
+  if (service_startup < 0) {
+    print_message(stderr, NSSM_MESSAGE_INVALID_SERVICE_STARTUP, value->string);
+    for (i = 0; startup_strings[i]; i++) _ftprintf(stderr, _T("%s\n"), startup_strings[i]);
+    return -1;
+  }
+
+  unsigned long startup;
+  switch (service_startup) {
+    case NSSM_STARTUP_MANUAL: startup = SERVICE_DEMAND_START; break;
+    case NSSM_STARTUP_DISABLED: startup = SERVICE_DISABLED; break;
+    default: startup = SERVICE_AUTO_START;
+  }
+
+  if (! ChangeServiceConfig(service_handle, SERVICE_NO_CHANGE, startup, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, 0)) {
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+    return -1;
+  }
+
+  SERVICE_DELAYED_AUTO_START_INFO delayed;
+  ZeroMemory(&delayed, sizeof(delayed));
+  if (service_startup == NSSM_STARTUP_DELAYED) delayed.fDelayedAutostart = 1;
+  else delayed.fDelayedAutostart = 0;
+  if (! ChangeServiceConfig2(service_handle, SERVICE_CONFIG_DELAYED_AUTO_START_INFO, &delayed)) {
+    unsigned long error = GetLastError();
+    /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */
+    if (error != ERROR_INVALID_LEVEL) {
+      log_event(EVENTLOG_ERROR_TYPE, NSSM_MESSAGE_SERVICE_CONFIG_DELAYED_AUTO_START_INFO_FAILED, service_name, error_string(error), 0);
+    }
+  }
+
+  return 1;
+}
+
+int native_get_startup(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+  if (! qsc) return -1;
+
+  unsigned long startup;
+  int ret = get_service_startup(service_name, service_handle, qsc, &startup);
+  HeapFree(GetProcessHeap(), 0, qsc);
+
+  if (ret) return -1;
+
+  unsigned long i;
+  for (i = 0; startup_strings[i]; i++);
+  if (startup >= i) return -1;
+
+  return value_from_string(name, value, startup_strings[startup]);
+}
+
+int native_set_type(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  /* It makes no sense to try to reset the service type. */
+  if (! value || ! value->string) {
+    print_message(stderr, NSSM_MESSAGE_NO_DEFAULT_VALUE, name);
+    return -1;
+  }
+
+  /*
+    We can only manage services of type SERVICE_WIN32_OWN_PROCESS
+    and SERVICE_INTERACTIVE_PROCESS.
+  */
+  unsigned long type = SERVICE_WIN32_OWN_PROCESS;
+  if (str_equiv(value->string, NSSM_INTERACTIVE_PROCESS)) type |= SERVICE_INTERACTIVE_PROCESS;
+  else if (! str_equiv(value->string, NSSM_WIN32_OWN_PROCESS)) {
+    print_message(stderr, NSSM_MESSAGE_INVALID_SERVICE_TYPE, value->string);
+    _ftprintf(stderr, _T("%s\n"), NSSM_WIN32_OWN_PROCESS);
+    _ftprintf(stderr, _T("%s\n"), NSSM_INTERACTIVE_PROCESS);
+    return -1;
+  }
+
+  /*
+    ChangeServiceConfig() will fail if the service runs under an account
+    other than LOCALSYSTEM and we try to make it interactive.
+  */
+  if (type & SERVICE_INTERACTIVE_PROCESS) {
+    QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+    if (! qsc) return -1;
+
+    if (! str_equiv(qsc->lpServiceStartName, NSSM_LOCALSYSTEM_ACCOUNT)) {
+      HeapFree(GetProcessHeap(), 0, qsc);
+      print_message(stderr, NSSM_MESSAGE_INTERACTIVE_NOT_LOCALSYSTEM, value->string, service_name, NSSM_LOCALSYSTEM_ACCOUNT);
+      return -1;
+    }
+
+    HeapFree(GetProcessHeap(), 0, qsc);
+  }
+
+  if (! ChangeServiceConfig(service_handle, type, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, 0, 0, 0, 0, 0, 0, 0)) {
+    print_message(stderr, NSSM_MESSAGE_CHANGESERVICECONFIG_FAILED, error_string(GetLastError()));
+    return -1;
+  }
+
+  return 1;
+}
+
+int native_get_type(const TCHAR *service_name, void *param, const TCHAR *name, void *default_value, value_t *value, const TCHAR *additional) {
+  SC_HANDLE service_handle = (SC_HANDLE) param;
+  if (! service_handle) return -1;
+
+  QUERY_SERVICE_CONFIG *qsc = query_service_config(service_name, service_handle);
+  if (! qsc) return -1;
+
+  value->numeric = qsc->dwServiceType;
+  HeapFree(GetProcessHeap(), 0, qsc);
+
+  const TCHAR *string;
+  switch (value->numeric) {
+    case SERVICE_KERNEL_DRIVER: string = NSSM_KERNEL_DRIVER; break;
+    case SERVICE_FILE_SYSTEM_DRIVER: string = NSSM_FILE_SYSTEM_DRIVER; break;
+    case SERVICE_WIN32_OWN_PROCESS: string = NSSM_WIN32_OWN_PROCESS; break;
+    case SERVICE_WIN32_SHARE_PROCESS: string = NSSM_WIN32_SHARE_PROCESS; break;
+    case SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS: string = NSSM_INTERACTIVE_PROCESS; break;
+    case SERVICE_WIN32_SHARE_PROCESS|SERVICE_INTERACTIVE_PROCESS: string = NSSM_SHARE_INTERACTIVE_PROCESS; break;
+    default: string = NSSM_UNKNOWN;
+  }
+
+  return value_from_string(name, value, string);
+}
+
+int set_setting(const TCHAR *service_name, HKEY key, settings_t *setting, value_t *value, const TCHAR *additional) {
+  if (! key) return -1;
+  int ret;
+
+  if (setting->set) ret = setting->set(service_name, (void *) key, setting->name, setting->default_value, value, additional);
+  else ret = -1;
+
+  if (! ret) print_message(stdout, NSSM_MESSAGE_RESET_SETTING, setting->name, service_name);
+  else if (ret > 0) print_message(stdout, NSSM_MESSAGE_SET_SETTING, setting->name, service_name);
+  else print_message(stderr, NSSM_MESSAGE_SET_SETTING_FAILED, setting->name, service_name);
+
+  return ret;
+}
+
+int set_setting(const TCHAR *service_name, SC_HANDLE service_handle, settings_t *setting, value_t *value, const TCHAR *additional) {
+  if (! service_handle) return -1;
+
+  int ret;
+  if (setting->set) ret = setting->set(service_name, service_handle, setting->name, setting->default_value, value, additional);
+  else ret = -1;
+
+  if (! ret) print_message(stdout, NSSM_MESSAGE_RESET_SETTING, setting->name, service_name);
+  else if (ret > 0) print_message(stdout, NSSM_MESSAGE_SET_SETTING, setting->name, service_name);
+  else print_message(stderr, NSSM_MESSAGE_SET_SETTING_FAILED, setting->name, service_name);
+
+  return ret;
+}
+
+/*
+  Returns:  1 if the value was retrieved.
+            0 if the default value was retrieved.
+           -1 on error.
+*/
+int get_setting(const TCHAR *service_name, HKEY key, settings_t *setting, value_t *value, const TCHAR *additional) {
+  if (! key) return -1;
+  int ret;
+
+  if (is_string_type(setting->type)) {
+    value->string = (TCHAR *) setting->default_value;
+    if (setting->get) ret = setting->get(service_name, (void *) key, setting->name, setting->default_value, value, additional);
+    else ret = -1;
+  }
+  else if (is_numeric_type(setting->type)) {
+    value->numeric = PtrToUlong(setting->default_value);
+    if (setting->get) ret = setting->get(service_name, (void *) key, setting->name, setting->default_value, value, additional);
+    else ret = -1;
+  }
+  else ret = -1;
+
+  if (ret < 0) print_message(stderr, NSSM_MESSAGE_GET_SETTING_FAILED, setting->name, service_name);
+
+  return ret;
+}
+
+int get_setting(const TCHAR *service_name, SC_HANDLE service_handle, settings_t *setting, value_t *value, const TCHAR *additional) {
+  if (! service_handle) return -1;
+  return setting->get(service_name, service_handle, setting->name, 0, value, additional);
+}
+
+int dump_setting(const TCHAR *service_name, HKEY key, SC_HANDLE service_handle, settings_t *setting) {
+  void *param;
+  if (setting->native) {
+    if (! service_handle) return -1;
+    param = (void *) service_handle;
+  }
+  else {
+    /* Will be null for native services. */
+    param = (void *) key;
+  }
+
+  value_t value = { 0 };
+  int ret;
+
+  if (setting->dump) return setting->dump(service_name, param, setting->name, (void *) setting, &value, 0);
+  if (setting->native) ret = get_setting(service_name, service_handle, setting, &value, 0);
+  else ret = get_setting(service_name, key, setting, &value, 0);
+  if (ret != 1) return ret;
+  return setting_dump_string(service_name, (void *) setting->type, setting->name, &value, 0);
+}
+
+settings_t settings[] = {
+  { NSSM_REG_EXE, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string, setting_not_dumpable },
+  { NSSM_REG_FLAGS, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string, 0 },
+  { NSSM_REG_DIR, REG_EXPAND_SZ, (void *) _T(""), false, 0, setting_set_string, setting_get_string, 0 },
+  { NSSM_REG_EXIT, REG_SZ, (void *) exit_action_strings[NSSM_EXIT_RESTART], false, ADDITIONAL_MANDATORY, setting_set_exit_action, setting_get_exit_action, setting_dump_exit_action },
+  { NSSM_REG_HOOK, REG_SZ, (void *) _T(""), false, ADDITIONAL_MANDATORY, setting_set_hook, setting_get_hook, setting_dump_hooks },
+  { NSSM_REG_AFFINITY, REG_SZ, 0, false, 0, setting_set_affinity, setting_get_affinity, 0 },
+  { NSSM_REG_ENV, REG_MULTI_SZ, NULL, false, ADDITIONAL_CRLF, setting_set_environment, setting_get_environment, setting_dump_environment },
+  { NSSM_REG_ENV_EXTRA, REG_MULTI_SZ, NULL, false, ADDITIONAL_CRLF, setting_set_environment, setting_get_environment, setting_dump_environment },
+  { NSSM_REG_NO_CONSOLE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_PRIORITY, REG_SZ, (void *) priority_strings[NSSM_NORMAL_PRIORITY], false, 0, setting_set_priority, setting_get_priority, setting_dump_priority },
+  { NSSM_REG_RESTART_DELAY, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDIN, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string, 0 },
+  { NSSM_REG_STDIN NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDIN_SHARING, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDIN NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDIN_DISPOSITION, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDIN NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDIN_FLAGS, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDOUT, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string, 0 },
+  { NSSM_REG_STDOUT NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDOUT_SHARING, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDOUT NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDOUT_DISPOSITION, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDOUT NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDOUT_FLAGS, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDOUT NSSM_REG_STDIO_COPY_AND_TRUNCATE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDERR, REG_EXPAND_SZ, NULL, false, 0, setting_set_string, setting_get_string, 0 },
+  { NSSM_REG_STDERR NSSM_REG_STDIO_SHARING, REG_DWORD, (void *) NSSM_STDERR_SHARING, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDERR NSSM_REG_STDIO_DISPOSITION, REG_DWORD, (void *) NSSM_STDERR_DISPOSITION, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDERR NSSM_REG_STDIO_FLAGS, REG_DWORD, (void *) NSSM_STDERR_FLAGS, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STDERR NSSM_REG_STDIO_COPY_AND_TRUNCATE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_STOP_METHOD_SKIP, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_CONSOLE_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_KILL_WINDOW_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_WINDOW_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_KILL_THREADS_GRACE_PERIOD, REG_DWORD, (void *) NSSM_KILL_THREADS_GRACE_PERIOD, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_KILL_PROCESS_TREE, REG_DWORD, (void *) 1, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_THROTTLE, REG_DWORD, (void *) NSSM_RESET_THROTTLE_RESTART, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_HOOK_SHARE_OUTPUT_HANDLES, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE_ONLINE, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE_SECONDS, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE_BYTES_LOW, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE_BYTES_HIGH, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_ROTATE_DELAY, REG_DWORD, (void *) NSSM_ROTATE_DELAY, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_REG_TIMESTAMP_LOG, REG_DWORD, 0, false, 0, setting_set_number, setting_get_number, 0 },
+  { NSSM_NATIVE_DEPENDONGROUP, REG_MULTI_SZ, NULL, true, ADDITIONAL_CRLF, native_set_dependongroup, native_get_dependongroup, native_dump_dependongroup },
+  { NSSM_NATIVE_DEPENDONSERVICE, REG_MULTI_SZ, NULL, true, ADDITIONAL_CRLF, native_set_dependonservice, native_get_dependonservice, native_dump_dependonservice },
+  { NSSM_NATIVE_DESCRIPTION, REG_SZ, _T(""), true, 0, native_set_description, native_get_description, 0 },
+  { NSSM_NATIVE_DISPLAYNAME, REG_SZ, NULL, true, 0, native_set_displayname, native_get_displayname, 0 },
+  { NSSM_NATIVE_ENVIRONMENT, REG_MULTI_SZ, NULL, true, ADDITIONAL_CRLF, native_set_environment, native_get_environment, native_dump_environment },
+  { NSSM_NATIVE_IMAGEPATH, REG_EXPAND_SZ, NULL, true, 0, native_set_imagepath, native_get_imagepath, setting_not_dumpable },
+  { NSSM_NATIVE_OBJECTNAME, REG_SZ, NSSM_LOCALSYSTEM_ACCOUNT, true, 0, native_set_objectname, native_get_objectname, native_dump_objectname },
+  { NSSM_NATIVE_NAME, REG_SZ, NULL, true, 0, native_set_name, native_get_name, setting_not_dumpable },
+  { NSSM_NATIVE_STARTUP, REG_SZ, NULL, true, 0, native_set_startup, native_get_startup, 0 },
+  { NSSM_NATIVE_TYPE, REG_SZ, NULL, true, 0, native_set_type, native_get_type, 0 },
+  { NULL, NULL, NULL, NULL, NULL }
+};