Hamachi

Hamachi is a virtual private network (VPN) shareware application which enables users to create secure networks or connect directly to networks over the internet requiring zero-configuration. It establishes connections to other computers on the network over the internet, similar to how a LAN network is connected, where you can then have access to a whole range of files through limitless peer-to-peer activity.

First released in 2006 by developers LogMeIn Inc. Hamachi developed a reputation for being simple to use, combining advanced features and technologies behind a sleek and basic user interface. From its beginning it has always been a five star application for creating virtual private networks allowing users to arrange multiple computers into one secure network opening doors to a whole range of P2P activity. The user access features allow you to control which remote users are permitted to enter your VPN with additional support for restricting remote users