@parker @menherahair microsoft does not compile windows server with gcc and simply compiling something with gcc doesn't make it GNU.

windows used to use GNU make as part of the build system, but not anymore - they use their own terrible build system instead.

You could run GNU software on windows server, but the whole idea of a server is that it's meant to be actually stable, thus you're much better off wiping the server and installing GNU/Linux and running GNU software with no constraints.