>Hi Ed.
>
>The problem is, i don´t have the database, costumers´s send me the tables and i have the rebuild the database.
>

If you don't have the database available to you, then the alternative is to examine the header of the .DBF file using low-level I/O to see if the backlink is present if you can't error-trap; the file structure of .DBFs is contained in the Appendix of the VFP Programemr's Guide in the On-Line Help.

A better approach would be to have the customer send you the database rather than just the one data file if that's feasible.