Stop-the-Pop-Up Lite
Stop-the-Pop-Up Lite is a free pop-up blocker preventing all annoying pop-up windows from appearing as you surf the web. The popup stopper has full support for both pop-ups and pop-under ads and will kill them even before they appear on the screen. Each time a pop up is closed you will hear a... Stop-the-Pop-Up Lite will also recognize and kill hostile activeX controls from companies known to develop spyware or adware. ... Gator, GAIN, C2, Comet Systems, Cydoor, Marketscore etc, are on Stop-the-Pop-Up Lite's black list.
http://www.sureshotsoftware.com/stopthepoplite/stopthepoplitesetup.exe - 977Kb - Download - Screenshot

Stop-the-Pop-Up
Stop-the-Pop-Up is a pop-up blocker preventing all annoying pop-up windows from appearing as you surf the web. The popup stopper has full support for both pop-ups and pop-under ads and will kill them even before they appear on the screen. Each time a pop up is closed you will hear a cute sound... Gator, GAIN, C2, Comet Systems, Cydoor, Marketscore etc, are on Stop-the-Pop-Up's black list. ... Stop-the-Pop-Up can be configured to start automatically after a reboot and resides in the system tray when minimized.
http://www.bysoft.se/sureshot/stopthepop/stopthepop.zip - 977Kb - Download - Screenshot

SpicyBot
These days spyware, adware and other malicious software programs are everywhere, and it seems almost impossible to stop them. You can be infected just by visiting a website, or by installing a popular software title. Once you are infected with even one of these malicious programs they can... If it sees a spyware or adware program trying to start, it will stop it dead in it's tracks! ... It prevents any program from changing your Internet Explorer Home Page without your permission: which means that spyware authors can't direct you to their own websites where they can infect you with even...
http://www.spicybyte.com/downloads/SpicyBot/Demo/SpicyBotDemo.msi - 4Mb - Download - Screenshot

Program Sleuth
Is your computer running slower then it used to? This powerful program will show you what is really running on your computer. You will be able to stop any program that you cannot recognize. If a program is gobbling up your computers speed and you do not know what it is, Program Sleuth will look... Program Sleuth gives you full control to eliminate problem programs running on your machine, without an annual subscription. ... Program Sleuth has our exclusive Know-It technology so you need not have to worry about the technical details; it will show you in a clear way only the suspicious...
http://www.screamingbee.com/FreeDownload.aspx?i=4353 - 522Kb - Download - Screenshot

PopUp Ad SmasheR
Windows XP ready! Smasher is a fast, easy to use program that offers to automatically stop pop-up ads and all other internet annoyances. For example it will stop animated flash ads, 3rd party activity links, timer ads (full page ads that sleep for 10 to 15 seconds and then take you to the link... This is one program that is packed with tons of features you would normally have to run in separate programs. ... Other features include erasing internet traces when closing your last Internet Explorer, password protect Internet Explorer and block offending material (web content filter).
http://www.adsmasher.com/pub/ismasher.exe - 2Mb - Download - Screenshot

Watch Dog
Two Clock Alarms; Two Stop Watches; Four Count Down Timers; Note Reminder; Stop Watch & Count Down Timers keeps time to the millisecond. Uses programming technique to "keep timers running"* if you exit program normally. Saves all of your changes. You may use any audio or video media file (avi,... Software records the time the software was exited. ... *Software does not execute any code if not loaded in to memory.
http://www.accorg.com/zips/wdsetup.exe - 981Kb - Download - Screenshot

Pop Up Blocker and Ad Killer for Kazaa
Tired of being hit by pop ups while you run your file sharing program? Pop Up Blocker and Ad Killer is designed to automatically detect and stop the popup windows that are opened by popular file sharing programs such as Kazaa, Kazaa Lite, Morpheus, Grokster, Xolox, iMesh and Direct Connect. ... Pop Up Blocker and Ad Killer will stop the pop ups even before they appear on the screen and as a side effect speed up your Internet connection. ... Do not linger, Pop Up Blocker and Ad Killer will stop Messenger spam too.
http://www.bysoft.se/sureshot/pbdl/pusaksetup.exe - 977Kb - Download - Screenshot

HeldUp
HeldUp is the easiest way to stop windows from disappearing behind other programs. HWND_TOPMOST is a special Windows setting for positioning a program above all others on your Windows Desktop even when using another program. Every programmer learns about this setting when they begin Windows... However, even though this is an easy feature to add to your own software, there are few utilities which allow the user to control this for any open program, and possibly none which allow the user to do this quicker and more easily than HeldUp.
http://www.johnmacintyre.ca/software/hu1setup.exe - 68Kb - Download

Sound Mine
Program trick must to force game maniac or loud music lover shut down your dear PC. Program imitates sound card damage and sounds after 0, 1, 5, 10 or 20 minutes after start. All 5 time versions are placed in zip archive. To stop this hide program press Ctrl+Alt+Del keys and select program name... If game or music maniac can guess to press Ctrl+Alt+Del keys then you may rename program exe file as SERVICE. ... OS Windows 98/ME/XP/2000/2003. ... EXE to confuse him.
http://www.yellow-gold-soft.com/distrib/Sound_Mine.zip - 114Kb - Download

W8Soft Ad-Spy Remover
Ad-Spy Remover software goes above and beyond your typical spyware removal software and actively monitors which programs are running on your computer. If it sees a spyware or adware program trying to start, it will stop it dead in it's tracks! It prevents any program from changing your Internet...
http://www.w8soft.com/W8SoftAd-SpyRemoverDemo.msi - 4Mb - Download - Screenshot