>We try to create a COM server with multiple client access.
>There is no problem with a single access, but it does not
>work correctly with simultaneous access...
>Where are the problems ?
>Tables Access, opening and closing tables, variables (global, local, alias) ?
>
>Thank you in advance

What is not working correctly? Does it lock records/tables and not allow multiple users to access them more than once? Do second and third COM servers not instantiate? What exactly is happening?