SpywareNuker 

9 out of 10 PC's are infected with some form of spyware/adware.
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Alternate Data Stream Tools for NTFS 

ADSTools (Alternate Data Stream Tools for NTFS File Systems) allows users to find and view all alternate data stream files on NTFS file systems. ADSTools also allows the user to make, edit, copy, move, rename, delete and run ADS files.
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TaskGuardian 

TaskGuardian is the arsenal of security tools designed to give you complete overview of what software is running on your system, in a comprehensible and easily understandable way. It includes advanced real-time process viewer with security analyzer.
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ActMon Computer Monitoring Software 

All-round activity recording tool. It allows parents and administrators to track the use of PCs easily and invisibly. Logs keystrokes (even XP login), active programs, chat, Instant Messages. Network (LAN) and email support with PRO Edition.
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Active Key Logger 

Active Key Logger this is the best choice for you if you think that others are using your computer when you are not home or away from your working place.
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PopupWar PRO 

If you didn't click it you don't want it. Call it smart, call it what you want. We just call it effective. No more popup windows ever. The best companion to file sharing programs like kazaa, grokster, morpheus, etc
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