>>I don't think it's possible with one generic trigger - the trigger needs to be on every single table. Of course, you may generate code to add such trigger to each table.
>
>That would be too much. Eventually I will "remove" the VFP database out of the "reach" of the user anyway. I am just exploring different scenarios for the short term.

In this case I think Bill's solution of making the folder read-only and accessible to Admins only should work. Other solutions are either a bit cumbersome or can be easily broken.