As the site where I'd post this is down for Maintenance I shall post this here
Pass this onto your workmates
Somebody will download the attachment which contains "trouble" (in Big Letters) out of curiosity
Looks innocent enough
recieved via Yahoo

quote:

Subject: The New Microsoft-Security System


Dear Sir/Madam,
We kindly ask you to install this update to your PC as soon as possible.
In the libraries of OS Windows® critical errors have been found. This errors
lead to destruction of the system files from your computer without an opportunity
on restoration. The given service-pack fixes libraries and does not allow
various Trojan modules to penetrate into your computer.

Yours Faithfully,
Microsoft INC

3 huge mistakes Microsoft do not send in Plain text B) Never offer you a download up front and C) It would be bundled in the normal updates
The attachement is labelled
Update_3032005.exe (2k)
PS Genuine MS Files are labelled with the relevenant Knowledge Base (KB) number, so you can double check against MicroSofts Files