During testing of Windows 7, the engineers working on the Operating System wrote a program to document movements made by mouse in order to debug the Operating System. The program is still in Windows 7 but it is hidden from public. You can access it using command psr.exe. Just click on Start, type psr.exe and hit enter. The following Toolbar will appear.
Thx to http://www.tecrux.com/2010/07/28/coolest-windows-7-tips-and-tricks-hidden-perks/