TightVNC - (Free)
TightVNC allows to remotely control a computer via Internet making it very easy to take care of a computer maintenance.
TightVNC is a program for remote control and administration via the Internet on a computer no matter what kind of operating system is installed.
The software allows to see in real time all this happens on controlled computer as if user is sitting at its computers. Besides monitoring, TightVNC is also able to optimize bandwidth. TightVNC is a free software compatible with the standard VNC.
This software is also very useful for making a remote computer maintenance.