This refers to having an enterprise license for Windows. If you have such a Windows product key enabled, the OS name will show as Windows Enterprise or as Windows Datacenter.

The goal is to just separate the users into personal and commercial customers, because you would have to spend quite a bit of money for these Windows licenses and keeping such systems running.

But in practice, you can just attempt to connect to any system from XPipe and it will tell you whether if you need a license for that.