The DLL for an installable ISAM file could not be found. This file is required for linking external tables (other than ODBC or Microsoft Jet database tables). The locations for all ISAM drivers are maintained in the Microsoft� Windows� Registry. These entries are created automatically when you install your application. If you change the location of these drivers, you need to correct your application Setup program to reflect this change and make the correct entries in the Registry.
Possible causes: