Windows Free Firewall Software for download
There aren't many free firewall
programs left for Windows. Most of the software that was
freeware has gone to a license or subscription plan - others are
crippled. In the 2001, both NetGuard and Esafe Desktop from Aladdin stopped
their free licensing for small user groups. I try to update this list regularly
but things often change quicker than I can keep up with.
NetDefender is a free firewall program that
comes with source code. This is about as basic of a firewall as you
can get. This package will mostly appeal programmers that want to know
how firewalls work. I would not consider this a full blown
package for your computer.
Windows Built In Firewall
Windows XP has a firewall that comes with the operation system that
can be enabled. It is not a robust firewall and offers no outbound
protection at all. That means spyware and keyloggers are free to send
results to hackers. It does however provide some level of inbound
security. Watch for this to improve in Vista,
Microsoft's new Windows
version later this year>
Kerio Personal Firewall (KPF)
is a software agent that builds a barrier between your personal computer and
the Internet. KPF is designed to protect your PC against attacks from both the
Internet, and other computers in the local network. Crippled into limited
functionality after 30 days.
Outpost Firewall from Agnitum (new)
Agnitum Outpost is the first personal firewall for Windows developed with Open
Architecture. The Open Development Process proved its efficiency with the
development of the Internet and with Linux. No company can be as fast, flexible
and innovative at enhancing a closed product as thousands of developers from
different countries all working on an open one. FREE and PRO
ZoneAlarm Free Version
This version is very crippled compaired to the version that you can
purchase. You can try the free version here
Another crippled version of their pro
version. Give it a try but expect an upsell to their other version.
Other Free Firewalls for Windows
This is a very simplistic firewall based on TDI. It is open
source and has not been updated or active for years. I Expect by now it
should be considered primitive.