Hamachi

Hamachi is a tool that allows you to create a "LAN" connection between two computers over the internet! No firewall/router problems! So you can play games whit an invalid cd-key,or with a cracked game or a not updated game.

You can also build a network whit tousands of computers and create a personal battlenet.

You can share your folders, play...

Its very usefull to be conected in lan.

Its impossible that you get some problems in connecting to hamachi because it uses a special NAT-to-NAT sistem that clears all firewalls and routers problems.