>In a multi-user (medical) application, I would like to put shared-data on a server, in a folder not accessible by clients using Windows-explorer. In this way it becomes impossible to damage, destroy, ..., the data, by the users themself.
>Of course the VFP program installed in the clients must access the data, to change them.
>
>I tried to put the 3DatabaseFiles in a shared folder (folder "DatabaseOnly" mapped as L: in the network), then "hide" the tables on a same-level-server-folder named "Tables", not shared, but with full permissions. In the project I made the references Database-Tables, so that its possible, at project-level, to open the database and then the related tables.
>
>Unfortunatedly, from the client I CAN open the database (OPEN DATABASE L:data1 SHARED), but when I try to open one of its related tables (USE TableA IN 0 SHARED), the result is "File TableA does not exist".
>
>Is there a solution to this problem, or an alternative way to get data "safe" from users on the network, other then using a COM object?

If the user has rights to the file, then that user, using Explorer, also has rights to the file. Short of using a COM component or string the data in a backend such as SQL Server that is noit accessed directly at the file level by the user, you're stuck.