Best Free Firewall

No other single product class seems to cause as much angst to average users in their installation and day-to-day use as Firewalls.

[1] Sunbelt-Kerio Personal Firewall
Website: http://www.sunbelt-software.com/Home-Home-Office/Sunbelt-Personal-Firewall/
Download link: http://www.sunbelt-software.com/Home-Home-Office/Sunbelt-Personal-Firewall/
Author: Sunbelt Software
Current version: 4.5.916
Version date: April 26, 2007
Download file size: 6.27MB
License: Freeware
Operating systems supported: Windows 2000/XP
Additional software required: None
64 Bit capable: No
Portable version available: No
Non-English languages supported: Yes
Other relevant information:

[2] Comodo firewall
Website: http://www.personalfirewall.comodo.com/
Download link: http://www.personalfirewall.comodo.com/download_firewall.html
Author: Comodo Group
Current version: 3.0.15.277
Version date: January 11, 2008
Download file size: 9.08MB
License: Freeware
Operating systems supported: Windows Xp/Vista
Additional software required: No
64 Bit capable: Yes
Portable version available: No
Non-English languages supported: Yes
Other relevant information: Version 2.4 is available for Windows 2000

[3] Online Armor Personal Firewall V2
Website: http://www.tallemu.com/product_overview.html
Download link: http://www.tallemu.com/downloads.html
Author: Tall Emu Pty Ltd
Current version: 2.1.0.31
Version date: November 16, 2007
Download file size: 14.9MB
License: Freeware
Operating systems supported: Windows NT/2000/XP
Additional software required: None
64 Bit capable: No
Portable version available: No
Non-English languages supported: No
Other relevant information: Free version doesn't include Mail Shield (spam filter) or automatic updates

[4] Jetico Firewall
Website: http://www.jetico.com/jpfirewall.htm
Download link: http://www.jetico.com/jpfirewall.htm
Author: Jetico, Inc.
Current version: 1.0.1.61
Version date: July 19, 2005
Download file size: 2.67MB
License: Freeware
Operating systems supported: Windows 98/Me/NT/2000/XP
Additional software required: None
64 Bit capable: Yes
Portable version available: No
Non-English languages supported: Yes
Other relevant information:

[5] NetVeda Safety.Net firewall
Website: http://www.netveda.com/consumer/safetynet.htm
Download link: http://www.netveda.com/downloads/index.htm
Author: NetVeda
Current version: 3.8.1
Version date: October 7th, 2007
Download file size: 4.31MB
License: Freeware
Operating systems supported: Windows 95/98/Me/2000/XP
Additional software required: None
64 Bit capable: No
Portable version available: No
Non-English languages supported: No
Other relevant information:

[6] ZoneAlarm free firewall
Website: http://www.zonealarm.com/store/content/catalog/products/sku_list_za.jsp
Download link: http://www.zonealarm.com/store/content/company/products/znalm/freeDownload.jsp
Author: Check Point Software
Current version: 7.0.462.000
Version date: December 14, 2007
Download file size: 205KB
License: Freeware
Operating systems supported: Windows 2000/XP/Vista
Additional software required: None
64 Bit capable: No
Portable version available: No
Non-English languages supported: Yes
Other relevant information: