ZoneAlarm Anti-Spyware provides multi-layered security to prevent spyware form infecting your computer and to detect and remove spyware that's already present on your system.

Triple Defense Firewall

Goes beyond traditional PC firewalls to protect your entire PC from hackers, spyware, and other Internet threats.
Blocks hackers from gaining access to your computer
Automatically makes your computer invisible to anyone on the Internet
Prevents spyware from sending your personal information across the Internet
Protects your programs and operating system from malware
The only firewall that can protect the most vulnerable parts of your computer from low-level "silent attacks", as noted by CNET*

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