>Hello every one,
>Please tell me how I can able to modify programmatically change Page size in reports. Like A4 to Letter or Legal. And any other option which VFP provide to change on run time or programmatically.

The report options are stored in the Expr field of the first record of the report table. For the list of report options see mskb#Q131201 and prtinfo() function help. For sample code that modifies Expr filed see mskb#Q251236 and faq#7840.