Firewalls
SecurWall
Pre-launch version of a firewall that will make people talk
Simple Vulnerability Manager
Create comprehensive vulnerability scans and reports quickly
SoftPerfect Personal Firewall
One of the best free firewalls
STOPzilla
Install STOPzilla and forget about spyware, popups, etc
Sunbelt Personal Firewall
Keep your PC out of the reach of intruders
VisualZone
Analyze intrusion attempts blocked by ZoneAlarm