Thanks Tech and DavidR for sharing your knowledge. I made the switch from 1 to 0 following ZoneAlarmCompatibility, restarted my PC and the Web Shield now shows a Scanned Count of 181 (previously 0). The switch apparently also turned on the Avast On-Access scanner message feature but, a search of the forum lead to another helpful post on how to uncheck "Show detailed information on action performed" to keep it from appearing. All seems fine now.