Microsoft KB Archive/288077

= XCCC: Error Message: Mqperf.dll Is Not Aligned on an 8-byte Boundary =

Article ID: 288077

Article Last Modified on 10/26/2007

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APPLIES TO


 * Microsoft Mobile Information Server 2001 Enterprise Edition
 * Microsoft SharePoint Portal Server 2001
 * Microsoft Exchange Server 5.5 Standard Edition
 * Microsoft Message Queuing 2.0

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This article was previously published under Q288077



Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry



SYMPTOMS
When you use Windows NT Performance Monitor to check the performance of the Microsoft Mobile Information Server or the Microsoft SharePoint Portal Server or Microsoft Exchange Server 5.5, the following event may be logged in Microsoft Event Viewer for each Performance Monitor session:

Event ID: 1016

Source: Perflib

Type: Warning

The data buffer created for the &quot;MSMQ&quot; service in the &quot;C:\Winnt\System32\MQPERF.dll&quot; library is not aligned on an 8-byte boundary. This may cause problems for applications that are trying to read the performance data buffer. Contact the manufacturer of this library or service to have this problem corrected or to get a newer version of this library.



CAUSE
This issue can occur if the server includes a function to accommodate 64-bit operating systems.



WORKAROUND
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To work around this issue, add the following registry key that prevents Performance Monitor from testing for data buffer alignment errors:  Start Registry Editor (Regedt32.exe). Locate and click the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Perflib

 On the Edit menu, click Add Value, and then add the following value:

Value Name: Configuration Flags

Data type: REGDWORD

Value: 0x01

 Quit Registry Editor.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

The event that is described in the &quot;Summary&quot; section is only a warning event and has no adverse effects on the server.

Additional query words: mis

Keywords: kbproductlink kbbug kbpending KB288077

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