Remove and Block Spyware and Adware
Technically a different category of software from viruses (and their cousins, Trojan horses and worms), spyware (or adware) runs in the background and monitors what you do, including which Web sites you visit. Usually this is for the purpose of displaying targeted ads (even when you don't have a Web browser open), though more devious and malign uses are also possible—such as stealing your passwords and other sensitive data.
Kaspersky Internet Security and McAfee VirusScan Plus include competent spyware blockers. Other currently popular anti-spyware/adware applications include:
Ad-Aware 2008 http://www.lavasoft.de/ (personal version, free; Plus version, $26.95 for a one-year license; Pro version, $39.95 for a one-year ...
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