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Real-time protection against spyware, trojans, rootkits, hijackers, keyloggers, and more!
Ad-Aware - Anniversary Edition offers radically improved performance and efficiency, along with comprehensive malware protection. With real-time monitoring, threat alerts, and automatic updates you can rest easy knowing that you are protected.
Features:

Detect, Remove AND Clean
A step beyond simply detecting and removing malware, Ad-Aware intelligently cleans and [...]

Ad-Aware 2008 Free
Protect yourself against identity theft,online fraud and other cyber crimes with the world’s most popular anti-spyware.
Go now to: Ad-Aware 2008 Free - Lavasoft
 
Spybot - Search & Destroy
Protect yourself against spyware
Go now to: The home of Spybot-S&D!

SpywareBlaster 
Prevent the installation of spyware and other potentially unwanted software!
Go now to: SpywareBlaster | Prevent spyware and [...]