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Microsoft KB Archive/171024

From BetaArchive Wiki
Knowledge Base

Article ID: 171024

Article Last Modified on 8/15/2007


  • Microsoft Outlook 97 Standard Edition
  • Microsoft Outlook 98 Standard Edition
  • Microsoft Outlook 2000 Standard Edition

This article was previously published under Q171024


When you try to check for new mail in Microsoft Outlook, you may receive the following error message:

MPREXE caused an invalid page fault in module Kernel32.dll


The Microsoft Windows password list file is damaged.


Rebuild the Microsoft Windows password list file.


Outlook stores mail server passwords in the Windows password list file. When Outlook checks for new mail, it must reference this password list file. The name of the password list file is generated from the name used as the Windows Logon ID, for example <Username>.pwl.

To rebuild the password list file, follow these steps:

  1. On the Windows taskbar, click Start, point to Find, and then click Files Or Folders.
  2. In the Named box, type *.pwl and click Find Now.
  3. Right-click the file titled <username>.pwl, and click Rename on the shortcut menu.
  4. Rename the file to <username>.old, and then press ENTER.

    NOTE: If you use a personal certificate, export it before renaming your .pwl file. If you do not do so, it may be unavailable when you send e-mail. For more information, see the following article in the Microsoft Knowledge Base:

    190296 Unable to use personal certificates in Outlook Express

  5. Restart Windows.

When prompted for a name and password, you must type a name. This name will be your Logon ID and will also be used as a name for your new password list file. Entering a password is optional. Leaving the password blank will create what is called a null password. If you use the null password, Windows will not prompt you for a password again.

The first time you run a program that stores a password in the password list file, you will be prompted for a password. If you tell the program to remember the password, it will be stored in the newly created password list file.


For additional information, please see the following articles in the Microsoft Knowledge Base:

151708 XCLN: Page Fault in Mprexe.exe when starting client

166898 OL97: Windows 95 Service Pack 1 and password issues

Additional query words: IPF corrupt gray grayed out dialup dial-up networking DUN

Keywords: kberrmsg kbprb KB171024