PayyaTec Popup Killer provides reliable and efficient pop-up and pop-under ad-blocking technology in an integrated, easy-to-use Internet Explorer toolbar. The program automatically blocks pop-up and pop-under ads and allows pop-up ads only from sites you select. It preserves bandwidth by stopping pop-ups before they load. In addition, PayyaTec Popup Killer displays statistics on the number of pop-ups blocked, and from which site, and plays a sound when a pop-up is blocked.