With Hamachi you can organize two or more computers with an Internet connection into their own virtual network for direct secure communication.

Hamachi is fast, secure and simple. It is also free.

What's in it for me
Think - LAN over the Internet.

Think - Zero-configuration VPN.

Think - Secure peer-to-peer.

Access computers remotely. Use Windows File Sharing. Play LAN games. Run private Web or FTP servers. Communicate directly. Stay connected.

Technology
Hamachi is a zero-configuration virtual private networking application with an open security architecture and NAT-to-NAT traversal capabilities.

Hamachi is the first application to mix seemingly unrelated networking technologies in one powerful package to deliver an unprecedented level of peer-to-peer connectivity. More ...

Security
Hamachi is secure. All Hamachi communications are encrypted and authenticated with industry-standard algorithms and protocols. Nobody will be able to see what two Hamachi peers are talking about. Not even us.

this is what the makers wrote about it

here is link 2 site: http://www.hamachi.cc/ [1]

Here is link to download: http://files.hamachi.cc/HamachiSetup-0.9.9.9-en.exe [2]

once setup connect to: clan7 and the password is food ****beware once connected*** everyone will see what you are sharing! so only share what u want people to see.

we can run clan game through this program so we organize i time then everyone connects Tim or someone starts a network game and everyone connects. this is a way 2 bypass far cry registration. i have tried this and it works great so get downloading