This article was previously published under Q298355
When you use any database wizard in Microsoft Access, you may receive the following error message:
Runtime error -2147221164(80040154):Class not registered
This error message may be displayed when you are finished running the wizard.
This behavior may occur when the file Msjetoledb40.dll is not correctly registered.
This problem has been fixed in the latest edition of the Jet Service Pack. For additional information about how to obtain the latest version of the Jet 4.0 database engine, click the following article number to view the article in the Microsoft Knowledge Base:
239114 How to obtain the latest service pack for the Microsoft Jet 4.0 Database Engine