Remote Desktop Connection from Windows XP to Windows Server 2008

The default settings for Windows requires the client to use Network Level Authentication (NLA) to connect to the server.  Windows XP does not support this on default.  Many online articles may suggest you to enable NLA by changing registry.  I found that Microsoft released a "Fix It" program to change the registry settings for you, saving you from the hassles.

Here's the link for the "Fix It" program:
http://go.microsoft.com/?linkid=9758284

You may have more details on the below article:
http://support.microsoft.com/kb/951608/en-us