Stop Screen Saver

From RJL Software:

Stop Screen Saver is a small utility that sits in your system tray (next to the Windows clock) and prevents the screen saver from running. Stop Screen Saver accomplishes this task by monitoring when Windows is going to start the screen saver due to inactivity on the computer. Then as Windows is trying to start the screen saver our utility steps in to prevent the screen saver from starting. Stop Screen Saver comes with several options to precisely tune how the screen saver is stopped and some other nifty controls to start your screen saver.