After successfully updating to ZA Suite v 91_008_000 on Vista Ultimate 32-bit I discovered that I had inadvertently added the ZA download manager bu not unchecking that option during the installation process. On a different thread I learned that the only way to remove it is to uninstall and reinstall without it. Unfortunately after running the uninstall, the reinstall fails after briefly flashing a "copying files" dialog with a message "Installation of ZoneAlarm Security Stuite has not been completed. Reason: INF could not be found."
It appears the uninstall completed successfully and I've tried the steps in the manual uninstall just in case but that didn't help.