Last Updated on May 19, 2010 EDT by Jordan
It’s a simple registry fix, you can read the KB Article 951608 from Microsoft.
http://support.microsoft.com/kb/951608
This will then allow you to connect to Windows 2008 Server computers as well as Windows 7 computers.
UPDATE: This won’t work for mRemote or mRemote-NG, for some reason you can only use for instance “mstsc” or Remote Desktop Client directly.