http://www.hiddensoft.com/AutoIt/
"AutoIt is a simple tool that can simulate key presses, mouse movements and window commands (maximize, minimize, wait for, etc.) in order to automate any windows based task (or even windowed DOS tasks).
AutoIt was primarily designed to assist in automatically installing software that cannot be automatically installed by other means. This is most useful during a PC rollout where hundreds or thousands of client machines need to be automatically installed. However, AutoIt is not limited to software installation and can be used to automate most simple windows tasks."
I'm using this now to automatically forcefully kill and restart an app at 4:00am every day. Very powerful yet simple. --Wim
see also Windows, Programming