XCLN: How to Remove Outlook 98 Completely

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

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.