An application firewall limits the access which software applications have to the operating system services, and consequently to the internal hardware resources found in a computer
Here are some FREE Firewalls Software available :.
- Kerio (Kerio Personal Firewall is FREE for home and personal use) - http://www.kerio.com/kpf_home.html
- Outpost Firewall (version 1 is free) - http://www.agnitum.com/download/outpost1.html .
- Sygate (FREE for personal use) - http://smb.sygate.com/products/spf_standard.htm
- Zonealarm Basic firewall - http://www.zonelabs.com/store/conte...reeDownload.jsp