Microsoft KB Archive/198289

= XCLN: ErrMsg: Mapi32.dll Is Missing or Corrupted =

Article ID: 198289

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Outlook 98 Deployment Kit
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q198289



SYMPTOMS
While you install Outlook 98 using the Outlook Deployment Kit (ODK), the installation appears to complete successfully. However, when you attempt to start the client, you receive the following error message:

MAPI32.DLL is missing or corrupted



CAUSE
Because Mapi32.dll is already in use by another application, the updated version of this file could not be copied over the previous version installed by Outlook 97. As a result, several other .dll files required by Outlook 98 are not installed either. Because the file is in use at the time of installation, it is considered locked open by the Setup program, and cannot be overwritten with the newer version of these files.



RESOLUTION
Close any programs that may be using Mapi32.dll, like Outlook or the Exchange client, before running Setup from the Outlook Deployment Kit either manually or through a login script.

Additional query words: Setup ODK Upgrade Missing Corrupted

Keywords: kbprb KB198289

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