The free personal firewall and host intrusion prevention (HIPS) software protects Windows desktops and servers from hackers, malware and other online threats. The new version offers enhanced packet inspection capabilities that improve security and filtering flexibility, a new export/import feature that simplifies the retention of custom settings, and greater defense against leak, general bypass, spying and termination vulnerabilities.
Privatefirewall provides an excellent layer of additional protection for the Windows operating system and supports 32 and 64 bit versions of Windows 7, Vista, and Server 2008/R2 as well as 32 bit versions of XP and Server 2003. Privatefirewall employs a multi-layered security architecture that combines stateful packet inspection of inbound and outbound traffic and intelligent HIPS technologies that model and monitor system and application behavior to identify and block activity characteristic of Trojans, keyloggers, port scanning, program hijacking and zero-day threats.Privatefirewall Key Features Include:• Windows 7, Vista, and Server 2008/R2 (32/64 bit). XP and Server 2003 (32 bit).
• Easy-to-use and powerful out-of-box protection.
• Extremely lightweight implementation utilizes minimal system resources.
• Signature-less Anti-Malware and Intrusion Defense – HIPS components learn normal system and application use patterns and detect and block untrusted activity.
• Intelligent Alerts – User-friendly alerts provide detailed information, comprehensive response options and pre-set intelligent “time-out” settings.
• Ultimate Application Control – Highly configurable Application Control Console enables you to specify which and precisely how applications can access the Internet.
• Advanced packet inspection and filtering – Stateful packet inspection technology monitors all inbound and outbound communication between the PC and the Internet.
• Process Detection – Prevents viruses, trojans, worms and other malware by tracking all processes and alerting when potentially malicious processes attempt to run.
• Automatic Detection of Trusted IPs – for Home, Office and Remote locations.
• PC Stealth – makes your PC invisible when online and stealth to potential intruders.
• Port Tracking and Reporting – All ports are monitored to prohibit unauthorized scanning and system intrusion. Detailed reports display scans and other recon attempts.
• Ranks among the best performing desktop defense applications tested against the industry's most rigorous leak, general bypass, spying and termination tests.
Product Details:
Privatefirewall 
