>Hello All ,
>
>I can not find proper way please help. My problem is
>
>I have one main form say main.scx. Inside that form I have 4 pages in page frame.
>On one of the page I have two command button , each of calling different form.
>My problem is both my calling form doing some heavy processing. So once I click on one command button , one of the calling form start processing and at the same time I want to start another process by clicking on second command button. but while my first calling form is busy with process , I can not click on second command button. My main form is a modal form and my both calling form has showwindow property = in top level form.

VFP is single threaded and single taksing - you'd really need to spawn multiple seesions using RUN or an API call to start separate VFP instances, and recoordinating them afterwards would be a PITA.