Works in Windows 9X, ME, 2000 & XP
http://www.safer-networking.org/index.php
Spybot - Search & Destroy can detect and remove spyware of different kinds from your computer.
What is spyware? In easy terms, spyware is software that transmits personally identifiable information from your computer to some place in the internet without your special knowledge.
How do you know if you have spyware on your system? If you see new toolbars in your Internet Explorer that you didn't intentionally install, if your browser crashes, or if you browser start page has changed without your knowing, you most probably have spyware.
Spyware is not a program you install itself, but small add-ons, to programs that you might install. In most cases, the EULA somewhere has a few lines telling you about privacy matters, but typically most users don't read the complete EULA and never know they got spyware on their system.
Some popular programs that install Spyware on your computer are: Kazaa, BearShare, AudioGalaxy, Gator, Bonzai Buddy, Comet Cursor, WebHancer, Brilliant Digital, CommonName, & Trickler.
If you want to learn more about spyware and see a list of programs to avoid, go to http://www.spywareinfo.com