>How can i change a table's header (i think its the first byte) through code?
>I want to change it at the startup/shutdown of my app so no ones can see the tables with another app. Can this be done?
>
>Thanks in advance
>Héctor L.

This technique will not work with shared tables. Is this a multi-uer application? You have to unprotect the table when the first user launches your app. Then you have to track all the users in the app so you know when to protect your tables again when the last user exits the app.