The following will not stop your PC from being infected with a virus,
but it will stop it spreading to your friends and business associates.

Most viruses spread by automatically emailing itself to ALL contacts
in the address book of the infected PC. By following the below method it
will save you from the embarrassing situation of having to tell all your
friends and associates that you may have inadvertently mailed them a
virus.

The method:

In your address book add a contact as just AAAAAA. This will make it
the first address in your address book. Do not give it an email address.

If you do get infected with a virus, when it tries to forward itself
to all in your address book, you will receive an error message "The
message could not be sent. One or more recipients do not have an email
address"

Simply go to your outbox and delete the message. You then only have to
worry about cleaning up your own PC.

If you forward this message to all your contacts then the chances of
them sending you are a virus will also be reduced. 

Merry Christmas,
From William Polowniak