Failed to create and initialize SQL OLE DB instance. Reason <error code>: <system error>.
The Repository Service or Integration Service failed to connect to the Microsoft SQL Server database because one or more Microsoft SQL Server API function calls failed.
Verify that all specified Microsoft SQL Server classes are properly registered in the registry. Then re-register oledb32.dll. [Regsvr32 \Program Files\Common Files\System\Ole DB\oledb32.dll]. Use the returned error code and error message to determine the cause of this error.