What you need to do is create the new RDP listening port via the registry:
After the remote machine reboots, Remote Desktop will be enabled on it. To test this from your workstation, open Start -> All Programs -> Accessories -> Communications -> Remote Desktop Connection. You can also type mstsc in the Run command.
http://www.petri.co.il/images/enable_rdp_remotely3.gif
Enter the name of the remote server in the Remote Desktop Connection logon box, supply your administrator password when prompted, and press Enter or click Ok.
http://www.petri.co.il/remotely_enable_remote_desktop_on_windows_server_2003.htm
http://www.petri.co.il/images/enable_rdp_remotely4.gif
- Run REGEDIT on your XP workstation or on your Windows 2000/2003 Server.
- Click on File, then choose "Connect Network Registry".
- In the Select Computer search box either browse Active Directory to locate the remote server, or type its name in the dialog box.
- In the remote machine's registry browse to the following key:
HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server
- Under the Terminal Server key find the value named fDenyTSConnection (REG_DWORD). Change the value data from 1 (Remote Desktop disabled) to 0 (Remote Desktop enabled).
- <LI value=6>Close Regedit.
- Reboot the remote machine for the change to take effect. You can easily do so by opening a command prompt and typing the following command:
shutdown -m \\srv1 -r
http://www.petri.co.il/images/enable_rdp_remotely3.gif
Enter the name of the remote server in the Remote Desktop Connection logon box, supply your administrator password when prompted, and press Enter or click Ok.
http://www.petri.co.il/remotely_enable_remote_desktop_on_windows_server_2003.htm
http://www.petri.co.il/images/enable_rdp_remotely4.gif