Automatically kill annoying pop up windows. StopCop will stop all possible types of popups, including windows spam messages, browser popup windows and pop-under windows, and even in-line browser advertising popups. This fast and easy-to-use software allows you to completely control whether you want popup advertisments appearing on your pc, or interrupting your browsing, and allows you to easily toggle the blocking on or off if you wish. StopCop adds an icon to your system tray for easy access. (Runs on all Windows systems).