1. Make a temp copy of the report
2. Open it as a table
3. Update 'Papersize=' value in the Expr field of the first records any way you like. For example, http://support.microsoft.com/kb/251236
4. Close report table
5 Run report from the temp copy.

>Thank for your reply,
>but how to Update Papersize in the FRX EXPR field to the retrieved one ?
>