I recently purchased a program called TeamViewer.
This is a very impressive remote access program, allowing support sessions to clients computers and servers very efficiently. It is a relatively small 2-Meg download and is totally safe, as the end user initiates a support session and ends it when finished – no software is permanently installed on a clients computer.
Previously I have used combinations of Hamachi & VNC clients like UltraVNC and TightVNC. These have worked reasonably well, but TeamViewer works so much better. Particularly with Windows-7.
Please visit the support page for further details…