Features:

Anti-Spyware IMPROVED-More robust detection and removal functions perform deeper scans at every level and purge spyware from your PC.Ability to remove even the most persistent, hard-to-find spyware that infiltrate your PC at the core level Spy Site Blocking-Prevents spyware from getting on your PC by blocking its primary

source: spyware distribution websites. Blocks you from accidentally visiting or being redirected to websites that distribute spyware.Prevents spyware already on your computer from contacting websites to exchange information, give out your personal data, or get updates
 

Network and Program Firewall-Delivers proactive firewall protection with multiple layers of security that stop inbound, outbound, and program attacks while remaining completely invisible to hackers.

 

Operating System Firewall (OSFirewall™) IMPROVED-This additional layer of security prevents hard-to-remove spyware, including rootkits and kernel-level threats, from getting onto your PC and causing damage. * Identify and filter over 100,000 applications for constant protection against threats * Monitor program installation, registry changes and file access down to your PC's core * Monitor additional program actions for more thorough protection * Prevents malicious software from damaging files in your core Windows operating system

Game Mode-One-click control temporarily suppresses most security alerts and prevents them from interrupting your fun while maintaining maximum protection for your PC.

Essential Email Security-Quarantines suspicious attachments to help defend against unknown viruses; automatically halts outbound messages to keep you from accidentally infecting others.

Wireless PC Protection-Automatically detects wireless networks and secures your PC from hackers and other Internet threats wherever you're connected - at home or on the road.

SmartDefense Service-Provides your PC with real-time security updates, improved response to breaking spyware threats, and new attack protection capabilities.
* SmartDefense Advisor automatically adjusts your security settings for maximum protection against the latest virus and spyware outbreaks
* Includes DefenseNet, an early warning system that gathers data from the ZoneAlarm user community on the latest spyware and malware outbreaks
* Leverages this vast user knowledge by including it in signature updates that protect your PC from the latest spyware attacks

Superior Performance & Compatibility-Allows your PC to run quickly and smoothly. System Requirements:Windows 2000 Pro/XP. Pentium III 450 MHz or higher. 50MB of available hard disk space. Internet access. Minimum system RAM: 64MB (2000 Pro), 128MB (XP).   Download here