The response I am about to give could be very stupid... but... this what comes to mind for the moment...
1. Try to print the report using VB6.0..
So, set up your params
2. But Preview the report on the screen
first... Crystal Reports allows you to do this... (Easy)
3. There you will have the Attached envelope
If you click on it, you can save the report in a any format you wish or you can e-mail it... basically do quite a lot of things with it...