Compatibility is 100%. Just use the tables, no problems!
>Hi,
>
>We want to write a small utility to update data in a VFP 6 table.
>
>However, we would prefer to write this utility in VFP 9 (it is likely to involve consuming data from a web service).
>
>Will opening the table in VFP 9 affect the structure of the table in any way?
>
>The database must still be useable by our VFP 6 application after it has been opened in VFP 9. Are we likely to have any problems?
>
>Regards.
>
>Matt.