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Older EXCHMEM.DLL present

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool queries the CIM_Datafile Microsoft Windows® Management Instrumentation (WMI) class to determine the value of the Version key for several core Exchange Server binary files. These files include Exchmem.dll. If the Exchange Server Analyzer determines that the Exchmem.dll file in the \%systemroot%\system32 folder is older then the Exchmem.dll file in the \%exchangeroot%\bin folder, the Exchange Server Analyzer displays a warning.

Normally, two copies of Exchmem.dll will not exist on a server. However, sometimes a second Exchmem.dll file is added with an in-place upgrade from previous releases of the product. The presence of two versions of the file can cause setup to fail during the installation of service releases. To prevent problems, it is recommended that you rename the Exchmem.dll file in the \%systemroot%\system32 folder.

To correct this warning
  1. Stop all Exchange services.

  2. Rename the Exchmem.dll file in the \%systemroot%\system32 folder to Exchmem.dll.old.

  3. Restart all Exchange services.

 
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