It's an easy no brainer to install and set up. You can have it blast a warning sound when it blocks a pop-up or demurely blink on your taskbar.
It will also block desired pop-ups like menus needed on some sites and possibly some eBay functions as well as interfere with multiple browser use. But the great thing is a simple double click of the icon on the taskbar truns it on and off. When off, you navigate as "normal" and receive all java scripting. When it's on, you are streamlined to visit sites like free e-mail places and others that usually bury you under a ton of pop up ads.
It's also an easy uninstall from control panel if you decide you like the advertisements more than turning Pop-Up Stopper on and of.
I've given Pop-Up Stopper a a good run for the money and it performs like a real trooper! This one gets the Flying-Glove thumbs up!