The Microsoft Jet database engine cannot open an external Paradox table because of inconsistencies between your initialization settings and those of another user who currently has the table open. The ParadoxNetPath and the ParadoxNetStyle settings in the \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Jet\3.5\Engines\Paradox key of the Windows Registry must be consistent for all users sharing a database. Make sure your initialization settings match those of all other users sharing the database, and then try opening the table again.