Enable RDP Remote Desktop remotely
1. Connect the dest machine registry using regedit
2. Under HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server
Find dword [fDenyTSConnection ] key and change to “0″
3. Restart it
shutdown -m \\machinename -r
Take a look
http://www.windowsdevcenter.com/pub/a/windows/2004/05/04/serverhacks_remote.html