What is Hamachi ? this is a program that will help you to connect two computers via the internet ( via virtual private network ) and then protect it with encryption algorithms. This mean communication between 2 computer is safe and the good news is Hamachi can also be used in local area networks (LAN) for extra safety and this mean you can creating safe LAN game with your friends using Hamachi . Hamachi also great solution if you plan to share files via P2P connections .