UltraVNC

UltraVNC: "UltraVNC is an easy to use computer program that can display a screen of another computer (via internet or network) on your screen. The program allows you to use your mouse and keyboard to control the other PC remotely. It means that you can work on a remote computer, as if you were sitting in front of it, right from your current location.

If you provide computer support, you can easy access your customer's computers from anywhere in the world and resolve helpdesk issues remotely! Your customers don't have to pre-install software or execute complex procedures to get remote helpdesk support. UltraVNC software allows you to remotely control a computer over any TCP/IP connection. UltraVNC emulates the destination computer to make it look as if you were in front of it.

UltraVNC key features include FileTransfer, Video Driver, Encryption Plugins, high performances, JavaViewer, MS Logon, mouse and keyboard emulation, good Security and Text Chat communication."