In order to attache a Btrieve table, you must have good DDFs or you will have to create DDFs yourself which can be a very difficult task. It is easiest to get the DDFs from the application vendor since they are the ones who created the data layout of the tables and know it best. You should then check the DDFs with the PCC to make sure they are accurate. Once that is done you shoudl then be able to attach to a table and view/ modify the data. You will not be able to do this if the application vendor has put security on the table, but that is pretty unlikely. I suggest that you try attaching to tables in DEMODATA to test how to do it with files that have good DDFs.
Regards,
Pervasivite