You also get Kaspersky 6 AV with ZA freeware.

http://forum.avast.com/index.php?topic=26182.msg215006#msg215006

RegCleaner will show Kaspersky6 under “Software” after installing ZA freeware. After uninstalling ZA, Kaspersky will be gone.

ZA uses way too much RAM, I think PC Tools Firewall Plus is a better choice (only 4096 kb of RAM).