PeerGuardian 2.0 Beta 6c (Open Source)

PeerGuardian 2 is Phoenix Labs' premier IP blocker for Windows. PeerGuardian 2 integrates support for multiple lists, list editing, automatic updates, and blocking all of IPv4 (TCP, UDP, ICMP, etc), making it the safest and easiest way to protect your privacy on P2P.

PeerGuardian 2 is Open Source, meaning the program code is available online for anyone who wants it. Not only does this allow you to make modifications or even branch off into your own project, but it encourages peer review of the code making sure any bugs are eliminated swiftly. Because PeerGuardian 2 is Open Source, you can rest assured there are no backdoors or spyware included.

Microsoft Baseline Security Analyzer 2.1 (Freeware)

Microsoft Baseline Security Analyzer (MBSA) 2.0 is an easy-to-use tool that helps small and medium businesses determine their security state in accordance with Microsoft security recommendations and offers specific remediation guidance. Improve your security management process by using MBSA to detect common security misconfigurations and missing security updates on your computer systems.

Built on the Windows Update Agent and Microsoft Update infrastructure, MBSA ensures consistency with other Microsoft management products including Microsoft Update (MU), Windows Server Update Services (WSUS), Systems Management Server (SMS) and Microsoft Operations Manager (MOM).

Sunbelt Personal Firewall 4.6.1861(Non-Commercial Freeware)

Protect yourself from hackers. Secure your PC with a 100% free firewall download. Sunbelt Personal Firewall (SPF), previously known as Kerio Firewall, was called "our favorite" by PC Magazine.

The Windows Firewall (both XP and Vista) is worse than useless, it gives you a false sense of security. Why? It only filters incoming traffic. That means if malware has compromised your PC, it is able to send out all your personal info. That's right; the Windows "firewall" does not stop that! But SPF...

• Supports Windows XP and Vista
• Filters both ingoing and outgoing traffic!
• Keeps hackers out and your private info inside.
• Works great with VIPRE Antivirus + Antispyware
• Easy to use and does not slow down your PC!

Avast 4.8

All-inclusive, comprehensive protection: avast! 4 Professional Edition includes anti-spyware protection, certified by the West Coast Labs Checkmark process, to protect against the latest spyware threats and anti-rootkit detection based on the best-in class GMER technology, built into the scan engine.

Simple to use and fully automated: Automatic incremental updates provide real-time protection of your system, including web surfing. We've made avast! antivirus as simple to use as possible, while allowing full control of your computer's security.

Tried and Trusted: With over 80 million users of avast!, you can rest assured that you are using one of the most tried and trusted antivirus products in Windows security. avast! supports more MS Windows versions (from Windows 95 to Vista 64-bit) than any other anti-malware product.