Ecco uno dei migliori firewall free disponibile !

Francamente non mi pento di aver rimpiazzato Zone Allarm con questo prodotto

Comodo Firewall ProVersion 3.0

It's Free. Forever. No Catch. No Kidding

             Free for Commercial Use!

The Award-Winning Free Firewall Software

• Rated as #1 most secure firewall in
•  independent security tests
• Complete protection from Hackers, Spyware and Identity theft
• Secures against internal and external threats
• Host Intrusion Prevention System stops malware ever
• being installed
• Delivers total end-point security for
• Personal Computers and Networks
• Free Download. No charges or license fees ever.

Install now for out-of-the-box protection against

identity theft hackers, Trojans, scripts and other unknown threats

Unlike some other 'free' firewalls,

this is not a stripped down version but is the full, completely functional product.

Updates and upgrades are also free.

System Requirements (version 3.0)

• Windows XP – 32 and 64 bit versions
• Windows Vista – 32 and 64 bit versions
• 64 Mb RAM
• 50 Mb free disk space

Note – Windows 2000 users should

 download Comodo Firewall Pro 2.4

Posto l'attenzione che FORSE è l'unico che è GRATUITO  ANCHE PER USO PROFESSIONALE / COMMERCIALE