NSSM - the Non-Sucking Service Manager

Windows 10, Server 2016 and newer

2017-04-26: Users of Windows 10 Creators Update or newer should use prelease build 2.24-101 or any newer build to avoid an issue with services failing to start. If for some reason you cannot use that build you can alternatively set AppNoConsole=1 in the registry, noting that applications which expect a console window may behave unexpectedly.

Thanks to Sebasian Krause for the initial diagnosis.


nssm should work under Windows 2000 or later. Specifically, Windows 7, Windows 8 and Windows 10 are supported. 32-bit and 64-bit binaries are included in the download. Most of the time it should be safe to run the 32-bit version on 64-bit Windows but in some circumstances you may find that it doesn't work and you must use the 64-bit version. Both versions are compiled from the same source code. If one works for you, use that one. If it doesn't, try the other.


nssm is public domain. You may unconditionally use it and/or its source code for any purpose you wish.

Latest release

nssm 2.24 (2014-08-31)

Featured pre-release

nssm 2.24-101-g897c7ad (2017-04-26)

nssm is built with the Jenkins continuous integration server. You can download any available build if you are feeling brave.

Source code

Source code is included in the download or you can browse gitweb and view the Changelog

You can also clone the repo from git://git.nssm.cc/nssm/nssm.git or http://git.nssm.cc/nssm/nssm.git with git.

Chocolatey package

nssm can be installed with Chocolatey. The Chocolatey package is built and maintained by a third party and may not correspond to the latest build available here.