MPREXE Causes Invalid Page Fault When Checking for Mail

ID: Q171024

The information in this article applies to:

SYMPTOMS

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

CAUSE

The Windows password list file is damaged.

MORE INFORMATION

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" (without quotation marks) 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 are using a personal certificate, you should 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:

      Q190296 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.

REFERENCES

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

   ARTICLE-ID: Q154092
   TITLE     : Err Msg: MPREXE Caused an Invalid Page Fault in Kernel32.dll

   ARTICLE-ID: Q151708
   TITLE     : XCLN: Page Fault in Mprexe.exe When Starting Client

   ARTICLE-ID: Q166898
   TITLE     : OL97: Windows 95 Service Pack 1 and Password Issues

Additional query words: IPF corrupt gray grayed out dialup dial-up networking DUN
Keywords          : kberrmsg
Version           : WINDOWS:97
Platform          : WINDOWS
Hardware          : x86
Issue type        : kbprb

Last Reviewed: March 2, 1999