Mouse Trap is a simple yet powerful security tool for Windows 9*/ME/NT/2000/XP. It traps your mouse in place until you enter the password, while disabling system keys like Alt-Tab and Ctrl-Alt-Del to prevent tampering.

It can hide itself in the system tray until you need to use it; it can also be configured to trap the mouse on system startup, at a certain time of day, or after a certain amount of minutes (like a screen saver).