1)   Live Desktop 3.10
Live Desktop is the fast, simple and secure remote automation utility to help you access your remote PC desktop by Windows Live Messenger in real time. It supports UPnP protocols to access the private network through the NAT gateway.

 2)   Go2PC Anywhere Free 2.10
Go2PC Anywhere Free allowing access to authorized PC by Windows MSN Live. It supports UPnP to through the firewall, allows you to access the authorized system, just like you are in front of it, even if you're hundreds or thousands of miles away.