Rodolfo,

I don't want to rain on your parade *grin*...

If someone has the ability to create an .exe and put it on the machine, they probably have the ability to run the .exe. And there are other (easy) ways folks can open your .dbf files and make changes.

>Yuri,
>
>Thanks for your suggestion.... I think it is the solution of my problem! :-)
>
>[]s!