>>Well... if you opened the file in the default data session, and run the above code in the private data session of the form, they should all return .f.
>>
>>That is the point of a private data session.
>>
>>BOb
>
>Well, if you want use common sense on me. < g >
>
>So I want to open the table exclusively. How do I tell if it's in use?

Roi,

If you track the data sessions in use, you can find what files are open in each with AUSED().