>>>Hi
>>>
>>>Is there a way for a VFP app to know a users email address without asking the user? i.e. a registry check or some other technique?
>>>
>>
>>If VFP could know it, then every virus writer would know it too.
>
>That would only be potentially useful to a virus writer if the virus is already able to run on the target machine and hence has already bypassed the security of the system. "Bit late to be worried about the stable door when the horse has already bolted" I think is the expression :)

The virus writer would benefit by gaining access to his real identity, i.e. it would spread by sending genuine messages from that machine, instead of sending spoofed emails. It may be able to bypass some security that outgoing messages may undergo, or to get to addresses where it would be blacklisted otherwise, but as you say, it doesn't mean much when it's already there.