I cannot possibly imagine a world where Microsoft cannibalizes their Windows Server sales by creating a Windows Emulation Layer for Linux. Are there any Window

I cannot possibly imagine a world where Microsoft cannibalizes their Windows Server sales by creating a Windows Emulation Layer for Linux. Are there any Windows only server applications that would be useful in a non windows shop? I'm not trying to be snarky, I really can't think of any. I would expect the most likely users to convert would be those using job specific desktop software.