1)   Super Ad Blocker 3.1.1000
Super Ad Blocker blocks all forms of advertising including Flash, Rich Media, fly-in, slide-in, pop-ups, pop-unders, spyware ads, messenger ads, and more! Blocks and removes spyware/adware applications. Automatic updates keep the product up to date!

 2)   PopGun Ad Stopper 1.21
Popup Killer is one of the webs best Ad Blockers. It is so simple, there is no need to set anything up, just run it and watch those popups get zapped. Very small, fast and intelligent and TOTALLY FREE. Download the FULL VERSION now.

 3)   Pop-Up Sentry! 2.0.1016
Pop-Up Sentry blocks all types of advertising including Pop-Ups, Pop-Unders, Flash, Rich Media, Fly-in, Slide-in, Spyware Ads, Messenger Ads, and more! Blocks over 550 major Spyware/Adware, Trojan and Homepage Hi-Jacker application components.

 4)   Pop-Up Stopper Basic 2.40.1000
Block Internet Explorer pop-up windows with this handy browser toolbar for Internet Explorer. Pop-Up Stopper Basic provides pop-up and pop-under blocking technology in an easy to use Internet Explorer toolbar,