Jetico Personal Firewall 1.0.1.61
Jetico Personal Firewall protects your computer from unwanted hacker's attacks from outside as well as from malicious programs "living" secretly inside your computer's memory and hard drive. Three levels of protection are included: low-level network packets filtering, application-level network events filtering and filtering of user-level process activity. Jetico Personal Firewall checks every packet that comes in or out of your computer.

Nsauditor Network Security Auditor 1.8.2
Nsauditor Network Security Auditor is a network security scanner that allows to audit and monitor network computers for possible vulnerabilities, checks your network for all potential methods that a hacker might use to attack it. Nsauditor is a complete networking utilities package that includes more than 45 network tools for network auditing, scanning, monitoring and more. Overall, this is a very complete package for a surprisingly low price.

ThreatSentry 3.0
ThreatSentry Host Intrusion Prevention + Application Firewall defends Windows Web servers against new and progressive attack techniques, protects network weak points, overcomes lapses in patch management, and reinforces regulatory compliance. An ISAPI filter hosted in MMC, ThreatSentry compares server requests to a knowledgebase and an evolving system baseline to detect untrusted activity and prevent attacks on Microsoft® IIS.

eConceal Standard for Windows 2.0.016.1
eConceal Standard for Windows is a powerful Network Firewall designed to protect your PC against attacks via the Internet or Local Area Network. eConceal offers customizable security with comprehensive Application Control and Access Control. Continuously monitors and filters the IP and Non-IP Traffic. Stealth Mode offers Surfing the Internet invisibly, without letting other online users see you. Ensures security by password protection.

ID Firewall 1.2
ID Firewall is a high-priority security program responsible for your computer's real-time protection against hackers. It blocks access to unauthorized attempts to use your computer, making sure your computer stays safe, free from exposure to internal network attacks, as well as external Internet ones. Main features includes: monitoring program running-attempts, denying access to unauthorized programs, filtering at a low level the traffic.