How do I create a dBase (*.dbf) table with VB ?
When a user open a table nobody can open this table.
How can I be sure the table is not open ? or to know what's the state of the table ?
Why some tables have .mdx files (index file) attached and some don't ?
Is there a way by code to restructure the table and/or make a new index file ?

I sincerely beleive that ADO has all the features you requested. You just need an OLE DB Provider for DBase.

Igor