Article ID: 249893 - View products that this article applies to.
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For information about the differences between Microsoft Outlook Express and Microsoft Outlook e-mail clients, click the following article number to view the article in the Microsoft Knowledge Base:
257824IMPORTANT: 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:
(https://support.microsoft.com/kb/257824/EN-US/ )OL2000: Differences Between Outlook and Outlook Express
(https://support.microsoft.com/kb/256986/EN-US/ )Description of the Microsoft Windows Registry
When you start Outlook Express you may receive the following error messages:
The identity login could not be started. Some components are either missing or incorrectly configured.
Outlook Express could not be started. It may not be installed correctly. Make sure that your disk is not full or that you are not out of memory. Contact Microsoft support for further assistance (0x80040154)
Outlook Express could not be started because MSOE.DLL could not be initialized. Outlook Express may not be installed correctly.
The error messages may be caused by damaged or incorrect versions of either the Msident.dll file or the Msidntld.dll file.
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.
Outlook Express on Windows Millennium EditionTo resolve this error message on a Windows Millennium computer follow these steps:
Outlook Express on Windows 98 or 98
This behavior can occur under one of the following circumstances:
CAUTION: Do not change any registry settings. If you change the registry settings, you computer may not start.
If you do not have an Identities key but there are Outlook Express keys in the registry, you can correct the problem by extracting both the Msident.dll file and the Msidntld.dll file from the Ie_extra.cab file, or by using Microsoft Windows System File Checker (SFC) in Microsoft Windows 98 Second Edition with Microsoft Internet Explorer version 5.0. If you have Internet Explorer version 5.01 you must extract these files from the Ie_extra.cab file.
How to Extract the Files by Using System File CheckerMake sure that either you have the Windows 98 Second Edition CD-ROM in your CD-ROM drive, or that you have these files available on our computer. To extract both the Msident.dll file and the Msidntld.dll file by using SFC:
How to Manually Extract the FilesTo manually extract the Msident.dll and Msidntld.dll files, you need the Ie_extra.cab file that is available on either your hard drive or on an Internet Explorer CD-ROM. If you download Internet Explorer from the Internet, this file is in the Windows Update Setup Files folder. Extract this file to the Windows\System folder.
After you locate the Ie_extra.cab file, restart your computer in MS-DOS mode. To do this, click Start, click Shut Down, click Restart in MS-DOS mode, and then clicking OK. Then extract the files from Ie_extra.cab. For additional information about the extract utility, click the article number below to view the article in the Microsoft Knowledge Base:
129605If you do not register the Msident.dll, Msidntld.dll files correctly; you still receive the error messages. After the files are extracted, you must run Regsvr32.exe on the Msident.dll, and Msidntld.dll files. To do this, click Start, click Run, type regsvr32 Msident.dll in the Open box, and then click OK. Repeat this process for the Msidntld.dll file. If you do not register the Msident.dll, and Msidntld.dll files correctly, you still receive the error messages.
(https://support.microsoft.com/kb/129605/EN-US/ )How to Extract Original Compressed Windows Files
No Outlook Express Registry KeysIf you do not have Outlook Express registry keys in the registry, rename both the Msident.dll file and the Msidntld.dll file, and then uninstall and reinstall Outlook Express. For more information about changing the name of a file, click Start, click Help, type change the name of a file or folder on the Search tab, and then click that topic in the list.
Article ID: 249893 - Last Review: August 29, 2007 - Revision: 1.4