* Eliminate Outlook Express in Windows 2000

http://support.microsoft.com/support/kb/articles/Q263/8/37.ASP

Rename the following folders to old_*

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\Address Book
or
C:\Documents and Settings\username\Local Settings\Application Data\Address
Book

Delete the following registry keys:

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

Each of the following files will be in the default folder (usually
\Winnt\System32) and in \Winnt\System32\Dllcache as well as the
Winnt\ServicePackFile folder.  For each file, rename the file in both
folders (there should be no CD in the drive), click on Cancel in
response to the prompt about Windows file protection, and click on Yes
to the prompt about unrecognized file versions.

    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

Simple, eh?