including message in email sent from VC++ code

[Mike Newberry]

Does anyone know how I can pass a string or load a text file as the message body when the default mailer is called from a VC++ program? I know how to invoke the default emailer using "mailto:", but I can't figure out how to get more than a blank message body with the correct "To:" address. I've looked at the registry entry for mailto: and see only 1 command line arg, which is used by the target address.

Thanks,

Mike Newberry