As Zonealarm is a quality firewall system, it is preferred by
those requiring maximum security at a competitive price. about 32%
of customers prefer Zonealarm.
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don't use zonealarm, use avast! antivirus is simple and easy
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The ZoneAlarm Internet Security Software can be purchased on the
ZoneAlarm website itself. They also offer a download for a free
version with less features.
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A Zone Alarm free firewall is pretty good. You can find more
information about it on this website
http://www.zonealarm.com/security/en-us/zonealarm-pc-security-free-firewall.htm