How to change the Default port for Remote Desktop

You can use the Remote Desktop feature in Microsoft Windows XP Professional to connect to your computer from another remote computer.
Warning The Remote Assistance feature in Microsoft Windows XP may not work correctly if you change the listening port.
To change the port that Remote Desktop listens on, follow these steps.
1. Start Registry Editor.
2. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber
3. On the Edit menu, click Modify, and then click Decimal.
4. Type the new port number, and then click OK.
5. Quit Registry Editor.
Note When you try to connect to this computer by using the Remote Desktop connection, you must type the new port.
Note The Remote Desktop Connection Client for the Mac supports only port 3389. 3389 is the default port.