Stopzilla
Improve your surfing speed by blocking pop-up ads, protect your PC from spyware, and kill cookies.

Spyware Vaccine
Scan, remove, and monitor spyware on your PC.

Spybot - Search & Destroy
Search your hard disk and Registry for threats to your security and privacy.

Spyware Doctor Starter Edition
Secure your PC against spyware, adware, Trojans, keyloggers, spybots, and tracking threats.

Spyware Terminator
Protect your computer with free real-time detection of spyware, adware, and key loggers.