Team viewer is an absolutely free tools used for remote control, desktop sharing, and file transfer that works behind any firewall and NAT proxy. To connect with another computer just simply run TeamViewer on both of the machine without any installation procedure. The automatic partner id will be generated on both of the computer, you just have to enter your partners id and the connection will be established. With thousands of user worldwide TeamViewes has becoming a standard tols that giving support and assistance to people in remote location, it is also can be used for presentation where you are able to show and share your desktop to a partner. TeamViewer is also VNC compatible and offer a secure encrypted data transfer for better security.