PopThis Professional features the pop-up protection of PopThis Free, with a number of added features, including privacy protection, added pop-up protection, and a slick Internet Explorer toolbar. PopThis Pro disables all pop-ups and messenger ads, without interfering with your surfing experience. PopThis Pro supports privacy features, which keep your surfing habits private. With a click on the toolbar, you can clear Windows tracking features. Sweep clean your cache, cookies, history, recent documents, and temp files. You also can configure cleanup that automatically occurs when you close Internet Explorer.