You are still protected. E-mail scanning is just an extra layer on top of
what is already running.
[[...let me explain why e-mail scanning is unnecessary. Almost every
anti-virus program for Windows installs by default a system scan that runs
in the background every time Windows starts. This scan is necessary to
protect your computer. If you receive a virus in an e-mail attachment, the
virus cannot do anything at all until you actually open the attachment. At
that time Outlook Express extracts the attachment from the message and saves
it to the Temporary Internet Files folder on your hard disk and attempts to
open the file. And it is precisely at that moment that a background system
scan will detect the virus, provided it is able to do so, and stop the virus
from executing. The system scan will usually delete the infected file from
the Temporary Internet Files folder, or else move it to quarantine.]]
http://www.microsoft.com/windows/IE/community/columns/filecorruption.mspx#EOAAC
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Hope this helps. Let us know.
Wes
MS-MVP Windows Shell/User
In