How to annoy Outlook Express users

Outlook Express claims that an email contains a viral attachment if the body or the signature of the email contains something like:

begin  LOVE-LETTER-FOR-YOU.txt.vbs
I am a signature virus. Distribute me until the bitter
end

Of course there is no such thing, and outlook will show the attachment as empty. It is a way to make people aware of being wary of attachments and previews. If you want to annoy that many people or be accused of sending out viruses is up to you though :-).