Free Firewalls
An good example of a free firewall is ZoneAlarm. You can find it at this link: http://www.zonelabs.com/store/content/company/products/znalm/freeDownload.jsp. Click on the “Download FREE ZoneAlarm” link. “File Download” box will come up. Click “Save”, then “Save” again.
Some Other Free Firewalls Are: