If you didn't click it you don't want it. This is what PopupWar is all about. Many free programs use your computer to display popup ads. Many web sites fill your desktop with popup ads. As If you didn't click it you don't want it. This is what PopupWar is all about. File sharing programs use your computer to display popup ads. Many web sites fill your desktop with popup ads. As the name implies, this product will close or not allow to open any popup window that you didn't request. As simple as that without interfering with your internet surfing. Call it smart, call it what you want. We just call it effective. PopupWar is the only program in the market that can claim this. Some close only internet popups, others close anything in sight. PopupWar only closes the ones you don't want.