UltraVnc

UltraVNC is a powerful, easy to use and free - remote pc access softwares - that can display the screen of another computer (via internet or network) on your own 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. There exist a lot of screen recorders, but all lack the speed for doing some full-screen recording. The speed is just to low or CPU to high.

Online compression can only be done with some real-time disk eating codecs. As I needed something faster to make some manuals, I found it quite similar to the speed problem that VNC has. Integrating the mirror driver was a real speed boost, 1280x1024x15Fps + online DivX compression.