+static int service_registry_path(const TCHAR *service_name, bool parameters, const TCHAR *sub, TCHAR *buffer, unsigned long buflen) {\r
+ int ret;\r
+\r
+ if (parameters) {\r
+ if (sub) ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY _T("\\") NSSM_REG_PARAMETERS _T("\\%s"), service_name, sub);\r
+ else ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY _T("\\") NSSM_REG_PARAMETERS, service_name);\r
+ }\r
+ else ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY, service_name);\r
+\r
+ return ret;\r
+}\r
+\r
+static HKEY open_registry_key(const TCHAR *registry, REGSAM sam, bool must_exist) {\r
+ HKEY key;\r
+\r
+ if (sam & KEY_SET_VALUE) {\r
+ if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
+ return 0;\r
+ }\r
+ }\r
+ else {\r
+ long error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key);\r
+ if (error != ERROR_SUCCESS) {\r
+ if (error == ERROR_FILE_NOT_FOUND && ! must_exist) return 0;\r
+ log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);\r
+ return 0;\r
+ }\r
+ }\r
+\r
+ return key;\r
+}\r
+\r