1 ZoneAlarm Pro

2 Outpost Firewall Pro

3 Norton Personal Firewall

4 Norman Personal Firewall

5 SurfSecret Personal Firewall

6 McAfee Personal Firewall Plus

7 BullGuard

8 Sygate Personal Firewall Pro

9 Injoy Firewall

10 BlackICE PC Protection

11 Personal Firewall Pro

12 Kaspersky Anti-Hacker

13 F-Secure Internet Security

14 PC-cillin Internet Security

15 Armor2net

16 Tiny Firewall

17 Privatefirewall

18 Freedom Firewall

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