Well I have two dirty little options....
Use this vbs script if it is a short message...call it from a batch file
that is triggered by a winat (AT) event.
http://support.microsoft.com/default.aspx?scid=kb;en-us;193685
Or you can use a batch file that telnets to the mail server and uses smtp
commands to manually send the message - again using winat to schedule a call
to a batch file that does the dirty work.
There may be something in one of the scripting forums you can use.
good luck
Lee
"Saylor Computer Consulting"