Free Software - Hamachi 1.0.3.0

Hamachi will allow you to establish secure direct connections to PC's that are not accessible otherwise due to the restrictions in network setup.

It is a networking technology enabling any two computers on the Internet to talk directly to each other regardless of the presence of firewalls or address translation devices on the route between them.

Most interestingly, Hamachi enables peer-to-peer communications between two computers residing behind two different connection sharing devices. In geek language - it allows for bidirectional NAT traversal.

Free Download Here