NSSM: The Non-Sucking Service Manager\r
-Version 2.16, 2012-12-01\r
+Version 2.21, 2013-11-24\r
\r
NSSM is a service helper program similar to srvany and cygrunsrv. It can \r
start any application as an NT service and will restart the service if it \r
Since version 2.15, NSSM is translated into Italian.\r
Thanks Riccardo Gusmeroli.\r
\r
+Since version 2.17, NSSM can try to shut down console applications by\r
+simulating a Control-C keypress. If they have installed a handler routine\r
+they can clean up and shut down gracefully on receipt of the event.\r
+\r
+Since version 2.17, NSSM can redirect the managed application's I/O streams\r
+to an arbitrary path.\r
+\r
+Since version 2.18, NSSM can be configured to wait a user-specified amount\r
+of time for the application to exit when shutting down.\r
+\r
+Since version 2.19, many more service options can be configured with the\r
+GUI installer as well as via the registry.\r
+\r
+Since version 2.19, NSSM can add to the service's environment by setting\r
+AppEnvironmentExtra in place of or in addition to the srvany-compatible\r
+AppEnvironment.\r
+\r
+Since version 2.22, NSSM can rotate existing output files when redirecting I/O.\r
+\r
+Since version 2.22, NSSM can set service display name, description, startup\r
+type and log on details.\r
+\r
+Since version 2.22, NSSM can edit existing services.\r
+\r
+\r
Usage\r
-----\r
In the usage notes below, arguments to the program may be written in angle \r
\r
Don't forget to enclose paths in "quotes" if they contain spaces!\r
\r
+If you want to include quotes in the options you will need to """quote""" the\r
+quotes.\r
+\r
\r
Managing the service\r
--------------------\r
If only the default action is set to Suicide NSSM will instead exit gracefully.\r
\r
\r
+Stopping the service\r
+--------------------\r
+When stopping a service NSSM will attempt several different methods of killing\r
+the monitored application, each of which can be disabled if necessary.\r
+\r
+First NSSM will attempt to generate a Control-C event and send it to the\r
+application's console. Batch scripts or console applications may intercept\r
+the event and shut themselves down gracefully. GUI applications do not have\r
+consoles and will not respond to this method.\r
+\r
+Secondly NSSM will enumerate all windows created by the application and send\r
+them a WM_CLOSE message, requesting a graceful exit.\r
+\r
+Thirdly NSSM will enumerate all threads created by the application and send\r
+them a WM_QUIT message, requesting a graceful exit. Not all applications'\r
+threads have message queues; those which do not will not respond to this\r
+method.\r
+\r
+Finally NSSM will call TerminateProcess() to request that the operating\r
+system forcibly terminate the application. TerminateProcess() cannot be\r
+trapped or ignored, so in most circumstances the application will be killed.\r
+However, there is no guarantee that it will have a chance to perform any\r
+tidyup operations before it exits.\r
+\r
+Any or all of the methods above may be disabled. NSSM will look for the\r
+HKLM\SYSTEM\CurrentControlSet\Services\<service>\Parameters\AppStopMethodSkip\r
+registry value which should be of type REG_DWORD set to a bit field describing\r
+which methods should not be applied.\r
+\r
+ If AppStopMethodSkip includes 1, Control-C events will not be generated.\r
+ If AppStopMethodSkip includes 2, WM_CLOSE messages will not be posted.\r
+ If AppStopMethodSkip includes 4, WM_QUIT messages will not be posted.\r
+ If AppStopMethodSkip includes 8, TerminateProcess() will not be called.\r
+\r
+If, for example, you knew that an application did not respond to Control-C\r
+events and did not have a thread message queue, you could set AppStopMethodSkip\r
+to 5 and NSSM would not attempt to use those methods to stop the application.\r
+\r
+Take great care when including 8 in the value of AppStopMethodSkip. If NSSM\r
+does not call TerminateProcess() it is possible that the application will not\r
+exit when the service stops.\r
+\r
+By default NSSM will allow processes 1500ms to respond to each of the methods\r
+described above before proceeding to the next one. The timeout can be\r
+configured on a per-method basis by creating REG_DWORD entries in the\r
+registry under HKLM\SYSTEM\CurrentControlSet\Services\<service>\Parameters.\r
+\r
+ AppStopMethodConsole\r
+ AppStopMethodWindow\r
+ AppStopMethodThreads\r
+\r
+Each value should be set to the number of milliseconds to wait. Please note\r
+that the timeout applies to each process in the application's process tree,\r
+so the actual time to shutdown may be longer than the sum of all configured\r
+timeouts if the application spawns multiple subprocesses.\r
+\r
+\r
+I/O redirection\r
+---------------\r
+NSSM can redirect the managed application's I/O to any path capable of being\r
+opened by CreateFile(). This enables, for example, capturing the log output\r
+of an application which would otherwise only write to the console or accepting\r
+input from a serial port.\r
+\r
+NSSM will look in the registry under\r
+HKLM\SYSTEM\CurrentControlSet\Services\<service>\Parameters for the keys\r
+corresponding to arguments to CreateFile(). All are optional. If no path is\r
+given for a particular stream it will not be redirected. If a path is given\r
+but any of the other values are omitted they will be receive sensible defaults.\r
+\r
+ AppStdin: Path to receive input.\r
+ AppStdout: Path to receive output.\r
+ AppStderr: Path to receive error output.\r
+\r
+Parameters for CreateFile() are providing with the "AppStdinShareMode",\r
+"AppStdinCreationDisposition" and "AppStdinFlagsAndAttributes" values (and\r
+analogously for stdout and stderr).\r
+\r
+In general, if you want the service to log its output, set AppStdout and\r
+AppStderr to the same path, eg C:\Users\Public\service.log, and it should\r
+work. Remember, however, that the path must be accessible to the user\r
+running the service.\r
+\r
+\r
+File rotation\r
+-------------\r
+When using I/O redirection, NSSM can rotate existing output files prior to\r
+opening stdout and/or stderr. An existing file will be renamed with a\r
+suffix based on the file's last write time, to millisecond precision. For\r
+example, the file nssm.log might be rotated to nssm-20131221T113939.457.log.\r
+\r
+NSSM will look in the registry under\r
+HKLM\SYSTEM\CurrentControlSet\Services\<service>\Parameters for REG_DWORD\r
+entries which control how rotation happens.\r
+\r
+If AppRotateFiles is missing or set to 0, rotation is disabled. Any non-zero\r
+value enables rotation.\r
+\r
+If AppRotateSeconds is non-zero, a file will not be rotated if its last write\r
+time is less than the given number of seconds in the past.\r
+\r
+If AppRotateBytes is non-zero, a file will not be rotated if it is smaller\r
+than the given number of bytes. 64-bit file sizes can be handled by setting\r
+a non-zero value of AppRotateBytesHigh.\r
+\r
+Rotation is independent of the CreateFile() parameters used to open the files.\r
+They will be rotated regardless of whether NSSM would otherwise have appended\r
+or replaced them.\r
+\r
+\r
+Environment variables\r
+---------------------\r
+NSSM can replace or append to the managed application's environment. Two\r
+multi-valued string (REG_MULTI_SZ) registry values are recognised under\r
+HKLM\SYSTEM\CurrentControlSet\Services\<service>\Parameters.\r
+\r
+AppEnvironment defines a list of environment variables which will override\r
+the service's environment. AppEnvironmentExtra defines a list of\r
+environment variables which will be added to the service's environment.\r
+\r
+Each entry in the list should be of the form KEY=VALUE. It is possible to\r
+omit the VALUE but the = symbol is mandatory.\r
+\r
+srvany only supports AppEnvironment.\r
+\r
+\r
+Managing services using the GUI\r
+-------------------------------\r
+NSSM can edit the settings of existing services with the same GUI that is\r
+used to install them. Run\r
+\r
+ nssm edit <servicename>\r
+\r
+to bring up the GUI.\r
+\r
+NSSM offers limited editing capabilities for services other than those which\r
+run NSSM itself. When NSSM is asked to edit a service which does not have\r
+the App* registry settings described above, the GUI will allow editing only\r
+system settings such as the service display name and description.\r
+\r
+\r
+Managing services using the command line\r
+----------------------------------------\r
+NSSM can retrieve or set individual service parameters from the command line.\r
+In general the syntax is as follows, though see below for exceptions.\r
+\r
+ nssm get <servicename> <parameter>\r
+\r
+ nssm set <servicename> <parameter> <value>\r
+\r
+Parameters can also be reset to their default values.\r
+\r
+ nssm reset <servicename> <parameter>\r
+\r
+The parameter names recognised by NSSM are the same as the registry entry\r
+names described above, eg AppDirectory.\r
+\r
+NSSM offers limited editing capabilities for Services other than those which\r
+run NSSM itself. The parameters recognised are as follows:\r
+\r
+ Description: Service description.\r
+ DisplayName: Service display name.\r
+ ImagePath: Path to the service executable.\r
+ ObjectName: User account which runs the service.\r
+ Start: Service startup type.\r
+ Type: Service type.\r
+\r
+These correspond to the registry values under the service's key\r
+HKLM\SYSTEM\CurrentControlSet\Services\<service>.\r
+\r
+\r
+Note that NSSM will concatenate all arguments passed on the command line\r
+with spaces to form the value to set. Thus the following two invocations\r
+would have the same effect.\r
+\r
+ nssm set <servicename> Description "NSSM managed service"\r
+\r
+ nssm set <servicename> Description NSSM managed service\r
+\r
+\r
+Non-standard parameters\r
+-----------------------\r
+The AppEnvironment and AppEnvironmentExtra parameters recognise an\r
+additional argument when querying the environment. The following syntax\r
+will print all extra environment variables configured for a service\r
+\r
+ nssm get <servicename> AppEnvironmentExtra\r
+\r
+whereas the syntax below will print only the value of the CLASSPATH\r
+variable if it is configured in the environment block, or the empty string\r
+if it is not configured.\r
+\r
+ nssm get <servicename> AppEnvironmentExtra CLASSPATH\r
+\r
+When setting an environment block, each variable should be specified as a\r
+KEY=VALUE pair in separate command line arguments. For example:\r
+\r
+ nssm set <servicename> AppEnvironment CLASSPATH=C:\Classes TEMP=C:\Temp\r
+\r
+\r
+The AppExit parameter requires an additional argument specifying the exit\r
+code to get or set. The default action can be specified with the string\r
+Default.\r
+\r
+For example, to get the default exit action for a service you should run\r
+\r
+ nssm get <servicename> AppExit Default\r
+\r
+To get the exit action when the application exits with exit code 2, run\r
+\r
+ nssm get <servicename> AppExit 2\r
+\r
+Note that if no explicit action is configured for a specified exit code,\r
+NSSM will print the default exit action.\r
+\r
+To set configure the service to stop when the application exits with an\r
+exit code of 2, run\r
+\r
+ nssm set <servicename> AppExit 2 Exit\r
+\r
+\r
+The ObjectName parameter requires an additional argument only when setting\r
+a username. The additional argument is the password of the user.\r
+\r
+To retrieve the username, run\r
+\r
+ nssm get <servicename> ObjectName\r
+\r
+To set the username and password, run\r
+\r
+ nssm set <servicename> ObjectName <username> <password>\r
+\r
+Note that the rules of argument concatenation still apply. The following\r
+invocation is valid and will have the expected effect.\r
+\r
+ nssm set <servicename> ObjectName <username> correct horse battery staple\r
+\r
+\r
+The Start parameter is used to query or set the startup type of the service.\r
+Valid service startup types are as follows:\r
+\r
+ SERVICE_AUTO_START: Automatic startup at boot.\r
+ SERVICE_DELAYED_START: Delayed startup at boot.\r
+ SERVICE_DEMAND_START: Manual service startup.\r
+ SERVICE_DISABLED: The service is disabled.\r
+\r
+Note that SERVICE_DELAYED_START is not supported on versions of Windows prior\r
+to Vista. NSSM will set the service to automatic startup if delayed start is\r
+unavailable.\r
+\r
+\r
+The Type parameter is used to query or set the service type. NSSM recognises\r
+all currently documented service types but will only allow setting one of two\r
+types:\r
+\r
+ SERVICE_WIN32_OWN_PROCESS: A standalone service. This is the default.\r
+ SERVICE_INTERACTIVE_PROCESS: A service which can interact with the desktop.\r
+\r
+Note that a service may only be configured as interactive if it runs under\r
+the LocalSystem account. The safe way to configure an interactive service\r
+is in two stages as follows.\r
+\r
+ nssm reset <servicename> ObjectName\r
+ nssm set <servicename> Type SERVICE_INTERACTIVE_PROCESS\r
+\r
+\r
Removing services using the GUI\r
-------------------------------\r
NSSM can also remove services. Run\r
\r
nssm install UT2004 c:\games\ut2004\system\ucc.exe server\r
\r
+To run the server as the "games" user:\r
+\r
+ nssm set UT2004 ObjectName games password\r
+\r
+To configure the server to log to a file:\r
+\r
+ nssm set UT2004 AppStdout c:\games\ut2004\service.log\r
+\r
To remove the server:\r
\r
nssm remove UT2004 confirm\r
\r
Building NSSM from source\r
-------------------------\r
-NSSM is known to compile with Visual Studio 6, Visual Studio 2005 and Visual\r
-Studio 2008.\r
+NSSM is known to compile with Visual Studio 2008. Older Visual Studio\r
+releases may or may not work.\r
\r
NSSM will also compile with Visual Studio 2010 but the resulting executable\r
-will not run on versions of Windows older than XP SP2.\r
+will not run on versions of Windows older than XP SP2. If you require\r
+compatiblity with older Windows releases you should change the Platform\r
+Toolset to v90 in the General section of the project's Configuration\r
+Properties.\r
\r
\r
Credits\r
Thanks to Emilio Frini for spotting that French was inadvertently set as\r
the default language when the user's display language was not translated.\r
Thanks to Riccardo Gusmeroli for Italian translation.\r
+Thanks to Eric Cheldelin for the inspiration to generate a Control-C event\r
+on shutdown.\r
+Thanks to Brian Baxter for suggesting how to escape quotes from the command prompt.\r
+Thanks to Russ Holmann for suggesting that the shutdown timeout be configurable.\r
+Thanks to Paul Spause for spotting a bug with default registry entries.\r
+Thanks to BUGHUNTER for spotting more GUI bugs.\r
+Thanks to Doug Watson for suggesting file rotation.\r
\r
Licence\r
-------\r
git://git.iain.cx/iain / nssm.git / blobdiff