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Consider the following scenario:

  • You create a data source view in Microsoft SQL Server Analysis Services (SSAS) that includes a SQL Server data source and an IBM DB2 data source.

  • The SQL Server data source is located on a remote 64-bit SQL Server system.

  • Microsoft OLE DB Provider for DB2 4.0 is installed on the remote instance of SQL Server and on the system where the data source view is being created.

In this scenario, the query statement that the data source view uses may fail with an error message that resembles the following:

Class not registered


OLE DB Provider for DB2 4.0 uses a ProgID value of DB2OLEDB.1 when a 32-bit process loads the provider and a ProgID value of DB2OLEDB when a 64-bit process loads the provider. In this scenario, the SQL Server Designer runs as a 32-bit process. Therefore, it passes the DB2OLEDB.1 to the remote SQL Server system. The 64-bit SQL Server process cannot locate the DB2OLEDB.1 class because OLE DB Provider for DB2 4.0 is registered as DB2OLEDB. This situation causes the query to fail because OLE DB Provider for DB2 4.0 cannot be located.


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, go to the following Microsoft website: The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must first uninstall the existing installation of Microsoft OLE DB Provider for DB2 4.0. Then, use the .msi file that is listed in the "File information" section to install this hotfix.

Restart information

You may have to restart the computer after you apply this hotfix.

Replacement information

This hotfix does not replace any previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For Microsoft OLE DB Provider for DB2 4.0

File name

File version

File size





Not applicable




Not applicable


Not applicable




Not applicable


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Third-party information disclaimer

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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