257824 OL2000: Differences Between Outlook and Outlook Express
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
This article describes how to manually remove and then reinstall Microsoft
Outlook Express 5.x and 6.0 on a computer that is running Microsoft Windows
2000. Because you cannot automatically remove Outlook Express 5.x with the
Add/Remove Programs tool in Control Panel, this article explains the best
technique for removing Outlook Express 5.x so that you can reinstall it.
NOTES
To manually remove Outlook Express 5.x or 6.0, you must rename several files. To help in this process, all system files and file extensions must be visible:
Before you remove Outlook Express, it is important to familiarize yourself
with the back up and restore procedures for Outlook data. Microsoft recommends
that you back up your e-mail, address book, and other data. For detailed
instructions and backup procedures, see the following Microsoft Knowledge Base
articles:
181084 How to Back Up Your Inbox Assistant Rules in Outlook Express
188093 How to Back Up the Account List in Outlook Express
230208 How to Back Up E-mail Messages in Outlook Express 5
270670 OLEXP: How to Back Up and Recover Outlook Express Data
To remove Outlook Express, you must rename several folders.
NOTE: Before you remove Outlook Express, make sure you are
logged on to the computer with Administrative rights.
C:\Program Files\Common Files\Microsoft Shared\Stationery
C:\Documents and Settings\username\Application Data\Identities
-or-
C:\Documents and Settings\username\Local Settings\Application Data\Identities
C:\Documents and Settings\username\Application Data\Microsoft\Address Book
-or-
C:\Documents and Settings\username\Local Settings\Application Data\Address Book
You must now delete the registry key for Outlook Express:
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.
HKEY_LOCAL_MACHINE\Software\Microsoft\Outlook Express
HKEY_LOCAL_MACHINE\Software\Microsoft\WAB
HKEY_CURRENT_USER\Identities
HKEY_CURRENT_USER\Software\Microsoft\Outlook Express
HKEY_CURRENT_USER\Software\Microsoft\WAB
HKEY_LOCAL_MACHINE \Software\Microsoft\Active Setup\Installed
Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}
HKEY_LOCAL_MACHINE \Software\Microsoft\Active Setup\Installed
Components\{7790769C-0471-11D2-AF11-00C04FA35D02}
To complete the removal procedure, rename several Outlook Express files:
Inetcomm.dll
Msoeacct.dll
Msoert2.dll
Msoe.dll
Msoeres.dll
Msimn.exe
Oeimport.dll
Oemiglib.dll
Oemig50.exe
Setup50.exe
Wab.exe
Wabfind.dll
Wabimp.dll
Wabmig.exe
Csapi3t1.dll
Directdb.dll
Wab32.dll
Wab32res.dll
Each of these files are located in two folders, the default file folder, and the C:\Winnt\System32\Dllcache folder. For example, the Inetcomm.dll file is located in the C:\Winnt\System32 folder, by default, and in the C:\Winnt\System32\Dllcache folder. You must rename the same file in both folders to successfully remove Outlook Express. To rename these files:
Outlook Express is now reinstalled. Start Outlook Express to test its functionality. To restore your e-mail messages, address book, and other Outlook Express data, please refer to the backup articles that are listed earlier in this section.
To reinstall Outlook Express 6.0, you need to log on to the following Microsoft Web site and download Outlook Express 6.0. Follow the instructions on the Web site:
For additional information about using Outlook Express in Windows 2000, click the article number below to view the article in the Microsoft Knowledge Base:
254623 OLEXP: How to Reinstall Microsoft Outlook Express 5 in Windows 2000
| Last Reviewed: | 12/26/2002 |
| Keywords: | kbhowto KB263837 |