XCLN: How to Remove Outlook 98 Completely (231485)


The information in this article applies to:

  • Microsoft Outlook 98
  • Microsoft Exchange Server 5.5
This article was previously published under Q231485
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

SUMMARY

This article describes how to remove Outlook 98 completely from a computer that is not an Exchange Server computer.

MORE INFORMATION

To remove Outlook 98 completely from your computer, use the following steps.

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.
  1. Start the Add/Remove Programs tool and remove Outlook 98.
  2. Start Registry Editor (click Start, click Run, type regedit, and then click OK).
  3. Locate the following registry keys, export each key to your desktop, and then delete each key from the registry:

    HKEY_CURRENT_USER,"SOFTWARE\Microsoft\Office\8.0\Outlook"
    HKEY_CURRENT_USER,"SOFTWARE\Microsoft\MSDetect\AllApps\EMAIL\Outlook"
    HKEY_CURRENT_USER,"SOFTWARE\Microsoft\Shared Tools\Outlook"
    HKEY_LOCAL_MACHINE,"SOFTWARE\Microsoft\Office\8.0\Outlook"
    HKEY_LOCAL_MACHINE,"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\OUTLOOK.EXE"

  4. Rename the following files that may still remain on your computer after you remove Outlook:

    Mapi32.dll
    Mapisrvr.exe
    Mapisp32.exe
    Mapi.dll
    Mapix.dll
    Mapiu.dll
    Mapisvc.inf
    Minet32.dll
    Emsuix32.dll
    Emsui32.dll
    Emsmdb32.dll
    Emsabp32.dll
    Outlcomm.dll
    Contab32.dll
    Mspst32.dll
    Outlook.exe
    Outlook.srg
    Outllib.dll
    Outlmime.dll
    Outlrpc.dll
    Pstprx32.dll

  5. Restart the client computer.
You can now run Outlook 98 Setup again if you need to perform a clean reinstallation.
Modification Type:MinorLast Reviewed:4/28/2005
Keywords:kbenv kbinfo KB231485
©2004 Microsoft Corporation. All rights reserved.