Microsoft KB Archive/896100

= FIX: The COM+ process stops responding after a Visual Basic application uses the Microsoft Oracle ODBC driver to connect to an Oracle database server that is hosted on a Windows Server 2003-based computer or on a Windows XP-based computer =

Article ID: 896100

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Data Access Components 2.8
 * Microsoft Data Access Components 2.8 Service Pack 1
 * Microsoft Data Access Components 2.8 Service Pack 2

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Bug #: 275911 (SQLBUDT)

Bug #: 281917 (SQLBUDT)

Bug #: 369038 (SQLBUDT)

Bug #: 369039 (SQLBUDT)



SYMPTOMS
Consider the following scenario. A Microsoft Visual Basic application uses the Microsoft Oracle ODBC driver (Msorcl32.dll) to connect to an Oracle database server. The Oracle database server is hosted on a Microsoft Windows Server 2003-based computer or on a Microsoft Windows XP-based computer. In this scenario, the Microsoft COM+ process stops responding (hangs). After this problem occurs, you may have to restart the Visual Basic application to resume the full range of expected functions.



CAUSE
This problem occurs because the Microsoft Oracle ODBC driver loads COM+ components in the DLLMain function. This behavior can cause a deadlock condition.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Hotfix file information
This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build.

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.

Hoffix information
A supported hotfix is now 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 this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Hotfix file information
This hotfix contains only those files that are required to correct the issues that this article lists. This hotfix may not contain of all the files that you must have to fully update a product to the latest build.

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.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 2.



MORE INFORMATION
For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

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

Additional query words: mdac oracle odbc hang msorcl32.dll

Keywords: kbhotfixserver kbwinserv2003sp2fix kbbug kbfix kbtshoot kbqfe kbpubtypekc KB896100

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