Multiple RDP listening ports

If you ever need to make a PC (or server) listen for inbound RDP connections on multiple TCP ports:

1) Run REGEDIT on your host machine.

2) Export the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp

3) Edit the .REG file and change the name of the key to something like:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp-New

4) In the .REG file find
PortNumber
and change it to whatever port you want.

5) Import the .REG file back to the registry.