From the developer: "No more X10 ads peeking at you when you close a window! No unwanted pop-up advertisements of any kind. CheckIt 86 sits quietly in the system tray and nukes any window that you did not open on purpose. CheckIt 86 is a revolutionary application that makes your Internet surfing experience faster, and less annoying. CheckIt 86 runs in your system tray, and monitors the web browsing traffic in Internet Explorer. When it detects that the page your are browsing will disrupt your experience, it will block the request. At any time, CheckIt 86 can be disabled if it blocks content that you actually want to see."