Best Open Source Windows Administration Tools Repositories By gunnalagFebruary 2, 2011Windows Technologies Windows SysInternals – http://technet.microsoft.com/en-us/sysinternals (MSFT) CodePlex – http://www.codeplex.com/ (MSFT) NirSoft – http://www.nirsoft.net/ CygWin – http://www.cygwin.com/