Pro Key Lock can be used to lock specific keys, key combinations and mouse functions such as the function keys, the caps-lock key, the windows (start) key, Alt-Tab, right clicks, double clicks, etc. The user can also define a rectangle on the screen and instruct Pro Key Lock to enable mouse clicks only inside/outside this rectangle. Pro Key Lock is ideal to be used wherever there is a need to prevent a user from accidentally, or intentionally, interfering with the operating system. Unlike other similar programs, Pro Key Lock can also be used to prevent the user from bringing up the windows task manager by pressing Ctrl-Alt-Del. Indicative applications include information kiosks, internet corners, presentations, classrooms. seminar rooms, etc.