PRB: ERR "ADO Could Not Find The Specified Provider"


The following error message occurs when trying to connect to SQL Server using ActiveX Data Objects (ADO):
ADODB.Connection error '800a0e7a'
ADO could not find the specified provider.


The MSDASQL OLE DB provider is either unavailable or is not registered. This can be caused by an incomplete upgrade or a bad install of the Microsoft Data Access Components (MDAC) components.


Here are two ways to resolve this problem:
  • Register the Msdasql.dll using the following command:
    REGSVR32 "C:\Program Files\Common Files\System\ole db\MSDASQL.DLL"
  • Reinstall the Microsoft Data Access Components used. The newest version of MDAC can be downloaded from the following Web site:


This behavior is by design.

More Information

Steps to Reproduce Behavior

  1. Unregister "C:\Program Files\Common Files\System\ole db\Msdasql.dll" using REGSVR32 from the Command line. Here is an example:
    REGSVR32 -U "C:\Program Files\Common Files\System\ole db\MSDASQL.DLL"
  2. Try to connect to the PUBS database on SQL Server using ADO.
RESULTS: The error occurs.

Id. de artículo: 191271 - Última revisión: 08/26/2008 - Revisión: 1