Popup Purger is an intelligent popup blocker for Internet Explorer that can block annoying popup/under ads before they even open. It features a SmartBlock Engine, that blocks unsolicited popup ads but never interferes with your normal navigation - it automatically recognizes popup window that were intentionally triggered by you. Popup Purger also comes with an option to keep your browser normalized, which will prevent pages from pulling stunts on you that open your browser in full-screen mode or without toolbar and navigation buttons. In addition to the popup/under blocking, the program can also block web page dialogs, hide or close all IE windows via Bosskey and exclude specified sites, using a White List.

Popup Purger is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  19.95USD.