>I found out that besides protecting table from being open, I can also prevent the .dbc from being opened by
>coding PROCEDURE dbc_OpenData
>
>So I think user can only open .dbc using a text editor and not by VFP anymore

Well, then you prevent OPEN DATABASE, but not USE your.DBC, that's still possible.
compiling DBFs into the exe is an option for data you only need read only.

Even if you could prevent opening the dbc file, any file can be accessed by attaching a hard drive as an additional data drive in an external case. Or start DOS and then modify files etc, that's not the direction to think about.

If you're so cencerned about data security use an SQL Server, not foxpro data.

Bye, Olaf.