We use the NAV-CE as well as the firewall to monitor incoming email and attachments.

Does it work? The firewall found 14,000 virus' THE DAY WE IMPLIMENTED IT. The Autoupdate runs at the machines startup and automatically updates the virus dat file (only uses bandwidth at startup) and so far we are nice and clean.

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Death is lighter than a feather - duty heavier than a mountian.