Sunbelt Personal Firewall used to be called the Kerio Personal Firewall (KPF). Kerio was going to discontinue it, but Sunbelt acquired it from Kerio to save the product from "going under". We needed a new name, and changed 'KPF' into the new 'SPF' (so much for software geeks being creative.

Despite its boring name, Sunbelt Personal Firewall is a very good piece of code, and received many awards. Tucows gave it their 5-Cow Rating. Computer Shopper in the U.K. gave it their Budget Buy Award with: "A seriously good firewall for the money.". Firewall expert Scot Finnie said: " ZoneAlarm Free and Sunbelt Personal Firewall - the two firewalls I've pointed to in the past as having the best user interfaces in this field".

What's New In The Latest Version?

The biggest addition is support for Vista 32 bit (with 64 bit support on the roadmap). However, there have been a lot of under-the-hood improvements in many areas. These include:

Significant improvement in network performance
Significant improvement in packet filtering
Enhanced Process Injection prevents code injection attempts into Windows
Numerous stability issues corrected in the firewall service
Significant improvement in overall product stability
Updated Intrusion Detection rules
Updated translation files for multiple languages

Old-style antivirus products have stacked layer upon layer of engines, and created bloatware in the process. They slow down your PC, have slow scan times and cause problems. See VIPRE's low impact on system resources compared to the competition. Click the chart to the right to enlarge.