NSSM

What NSSM is

NSSM is a Windows utility that runs an application as a service, monitors it, and can respond when the application exits. It offers a graphical interface for installing and removing services, while command-line options allow service configuration from scripts. Depending on the configured behavior, it can restart an application, ignore its exit, exit itself, or exit uncleanly to trigger Windows service recovery actions.

NSSM records its progress in the Windows system Event Log and can redirect an application's input and output. It can rotate output files at a chosen size, including while the application is running. Other controls include setting process priority and CPU affinity, and starting, stopping, or querying services. The software is public domain and may be used with its source code for any purpose. The site says it should work on Windows 2000 or later and provides 32-bit and 64-bit binaries. Its listed latest release is version 2.24, dated 2014-08-31, with a 2.24 prerelease build dated 2017-04-26. Managing services requires administrator access, and the site warns that bugs can cause severe system issues.