Popup Ad Stopper
Popup Ad Stopper is a simple, easy to use popup blocker. Popup Ad Stopper works with any web browser, not just one or a select few, like most popup blockers. Popup Ad Stopper actually filters web page content as it is coming in from the Internet, before it reaches your web browser.
http://download1.electrasoft.com/passx.exe - 380Kb - Download - Screenshot

Pop-Up Stopper
Block Netscape, Internet Explorer, Mozilla and desktop pop-up windows with the latest upgrade of this small tool, now with added support for Mozilla, and new technology to block annoying Messenger Service and GAIN adserver desktop ads! No need to adjust proxy settings, or add sites to a list. ... The latest version includes automatic updates, new ad-blocking technology, easier user interface, more sound and visual notifications to play when an ad is blocked, and a full online help database. ... Pop-Up Stopper is very small, and easy to use.
http://www.popupstopper.net/downloads/PopUpStopper.exe - 414Kb - Download - Screenshot

Pop-Up Stopper Professional
The only privacy product to block pop-up windows and clean tracking files in every browser on every Internet connection. No matter how you surf, you are protected. Pop-Up Stopper Professional blocks, or quickly closes, pop-up and pop-under ads in ALL browsers, including FireFox, AOL, MSN,... Pop-Up Stopper Professional provides more efficient pop-up and pop-under blocking technology in an easy to use utility that can optionally update itself to download free updates to ad blocking technology. ... Panicware's patent-pending XA technology blocks only pop-up ad windows and allows users to...
http://www.popupstopper.net/downloads/PopUpStopperProfessional.exe - 1,000Kb - Download - Screenshot

AAA KewlBar - Free Pop Up Blocker
Pop Up Ad Window Killer Stopper for Internet Explorer, AOL, and Oultook Express
http://www.kewlbar.com/kewlbar.exe - 906Kb - Download - Screenshot

Pop-Up Stopper Anti-Spyware
Block every type of ad, Web based or not. If it moves, shakes, wiggles, flies over your screen or jumps out from under your browser, we'll block it. Period. You can report ads that we do not block, and we will update the product to block them. We block ads served by spyware and adware files. ... Also included are advanced ad-blocking options for Internet Explorer, AOL and MSN. ... BONUS: You don't have to scan for spyware to block their ads with Pop-Up Stopper Anti-Spyware, but we give you the power to.
http://www.panicware.com/downloads/PopUpStopperAntiSpyware.exe - 4Mb - Download - Screenshot

Pop Up Police
Pop Up Police is the only Smart Ad Pop ControlTM system that automatically learns to think like you - not for you -- about what you want to see on your PC. Unlike Pop Up Blockers, our software is SMART so it won't allow anything you don't want to see. ... It is Smart Ad Control that also keeps you safe from sneak attacks! ... Pop Up Police is the ONLY pop up stopper that gives you total control over Pop Ups and Banner Ads, with extra Security Control for protection against sneak attacks. ... Our exclusive Ad Control TechnologyTM instantly forbids pop ups, banners and sneak attacks to...
http://www.triumviratetechnologies.com/free-trial/POPDemo164825.exe - 3Kb - Download - Screenshot

AdsBlock Popup Stopper and Banner ad Zapper
Don't let unwanted Popup and Banner ads Violate Your Computer - surf the net Hassle Free with AdsBlock: Blocks popups, banners, flash ads, messenger service ads, and detects spyware that serves ads. Users agree AdsBlock is extremely easy to install. You will receive free automatic upgrades... This unsurpassed spyware detection and ad blocking software will keep your connection running cleaner and faster. ... AdsBlock is the only solution you'll need to stop invasive popup ads and get the most out of your time on the Internet.
http://files.a1tech.com/files/adsblock.exe - 3Mb - Download - Screenshot

AdsGone Popup Killer ad Blocker
Finally, a Solution to the Web's Most Hazardous and Disruptive Problems: Blocks popups, banners, flash ads, messenger service ads, and detects spyware that serves ads. Blocks ads in Kazaa, Morpheus, Gator, ICQ, MSN, AIM, or Trillian. Thousands of people all over the world are already... With this program, you can finally maximize your enjoyment of the Internet without ever having to worry about those mindless, irritating and potentially damaging popup advertisements. ... By almost every standard, AdsGone has established itself as the leading popup and banner elimination software available.
http://files.a1tech.com/files/adsgone.exe - 2Mb - Download - Screenshot

IEJet-Popup Killer and Ad Stopper
It is a compact and efficent plug-in of Internet Explorer. It has the following features: Block the annoying popup ad/ads windows;Block Messenger Spam(which is getting popular today);Block Macromedia Flash;BOSS KEY to minimize/close all IE windows within 1 second;Alternative ways to disable... It makes you surf on net more comfortable and smoothly, TRY IT OUT TODAY!!!
http://iemate.retsinasoftware.com/iemate.exe - 358Kb - Download - Screenshot

PopGun Ad Stopper
Popup Killer is second to none, download it now FREE, very FAST, very CLEVER. All popups are zapped immediately. No need for lists. It just knows what a popup is!! , and instantly anhialates them ALL. It even has a cute GUI too. PopGun is hungry for your popups, please feed it now, and download it. ... Probably the best Popup Destroyer in the world. ... No rocket-science knowledge needed for this beauty!
http://www.kevin.lock2.btinternet.co.uk/popstop/popstopd.zip - 300Kb - Download - Screenshot