VNC stands for Virtual Network Computing. It is remote control software which allows you to view and fully interact with one computer desktop (the "VNC server") using a simple program (the "VNC viewer") on another computer desktop anywhere on the Internet. The two computers don't even have to be the same type, so for example you can use VNC to view a Windows Vista desktop at the office on a Linux or Mac computer at home. For ultimate simplicity, there is even a Java viewer, so that any desktop can be controlled remotely from within a browser without having to install software.
VNC Enterprise Edition
A much enhanced version of VNC, developed for use in enterprises of all sizes.
Designed and built from the ground up by the original inventors of VNC, Enterprise Edition provides secure, robust and easily-administered remote-control with a minimum of fuss. Existing Free Edition users considering upgrading may find this feature comparison useful. There is also a handy datasheet (250K pdf).