Topic Last Modified: 2007-11-14

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 EXSMTP.DLL. If the Exchange Server Analyzer determines that the Version key for EXSMTP.DLL does not equal 6556.0, a warning is displayed.

This warning indicates that the version of EXSMTP.DLL on this Exchange Server computer is from the Version 1 May 2004 Exchange 2000 Server Post-Service Pack 3 Rollup. A later update rollup is available for download.

To correct this warning

  1. Download the latest update (August 2004) from "Downloads for Exchange 2000 Server" (

  2. Read about the latest update by reviewing the Microsoft Knowledge Base article 870540, "Availability of the August 2004 Exchange 2000 Server Post-Service Pack 3 Update Rollup" (

  3. Take a complete backup of the Exchange Server computer.

  4. Apply the August 2004 update.

For more information about installing this and other Exchange Server updates, see the Microsoft Knowledge Base article 328839, "How to apply Exchange service packs and hotfixes" (