>>Why not just make called form to use Default Datasession?
>>In this case "Default" means not VFP default session (1) but "parent" form datasession.
>
>Really??? I thought "Default" would share the datasession with any other form that also has default datasession, not with forms that have private datasessions.
>
>It works, though - so it seems you are right. But I always believed that a form with a "default datasession" would have a separate datasession from any private forms.

Where have you been last 6+ years? The trick of parent's form using a private DS and child form using Default DS to share it is old as a world.