ProKeyLock, and its smaller cousin KidKeyLock, are powerful and easy to use utilities that can be used to lock specific keyboard an mouse functions.ProKeyLock is ideal to be used in order to prevent users from accidentally pressing unwanted keyboard and mouse buttons. When ProKeyLock is running, an indicator icon will appear on the system tray. When you click on the tray icon, a pop-up menu will appear. All program functions, including the setup dialog box are accessible from this menu.