Virtual Network Computing (VNC) is a software to remotely connect to a computer in another location.UltraVNC is a free remote help-desk software that makes it possible to view and interact with a computer from any other computer or device, via internet or intranet. But repeater connections are checked (vnc files using a repater/proxy), they fail (regardless encrypted or not) and show a red cross. VNC works perfectly on the Win 7 machines. UltraVNC SC is a mini (166 k) UltraVNC server that can be customized and preconfigured for download by the client.Using portable VNC viewers on the go. However, the current version of TurboVNC contains a much more modern X server code base (based on X.org 7.7) and a … TightVNC (is an improved version of AT&T's Virtual Network Computing (VNC) Viewer that was spearheaded by Constantin Kaplinsky. I am using VMware so if you are using another hypervisor, YMMV.