Why do I get the error "MPREXE caused an invalid page fault in..."?


I get this illegal operation message after i boot up my computer and if I click it off I can't shut off my computer and won't find anything when I click on my comuputer. everthig works fine as long as I don't click it off. I ran my virus protection and nothing shows up. ANY HELP WOULD BE APPRECIATED. THANKS,TERRY

MPREXE caused an invalid page fault in

module KERNEL32.DLL at 016f:bff7a4b2.


EAX=00000000 CS=016f EIP=bff7a4b2 EFLGS=00010206

EBX=00000000 SS=0177 ESP=00e5f9d4 EBP=00e5f9e4

ECX=00510018 DS=0177 ESI=00510000 FS=2687

EDX=0000006c ES=0177 EDI=0051000c GS=0000

Bytes at CS:EIP:

8b 03 25 fc ff ff 0f 3b 45 0c 0f 83 81 00 00 00

Stack dump:

788f1d1a 00e5fb64 00000066 bff7dd2e 00e5f9f8 bff88dc4 00510000 0000006c 00000000 00e5fa50 7ff214f0 00510000 00000000 00000066 7ff21520 7ffce00c


This question was answered on December 17, 2004. Much of the information contained herein may have changed since posting.


When you attempt to start Internet Explorer or Outlook Express on a Windows 95 or Windows 98-based computer, your computer may stop responding (hang), and you may receive one of the following error messages:

- Explorer caused an invalid page fault in module Kernel32.dll

- Commgr32 caused an invalid page fault in module Kernel32.dll

- Mprexe caused an invalid page fault in module Kernel32.dll

- Msgsrv32 caused an invalid page fault in module Kernel32.dll


This behavior can occur if your password list (PWL) file is damaged


To resolve this issue, use the following steps:

1 Click Start, point to Find, and then click Files Or Folders

2 In the Named box, type "*.pwl" (without quotation marks), and then

click Find Now.

3 In the list of found files, right-click each file, and then click

Delete Repeat step 3 until all of the .pwl files are deleted.

4 On the File menu, click Close

5 Restart the computer The password list files are re-created

automatically when you log on to Windows.

6 Download the Mspwlupd.exe file from the following Microsoft Web site,

and then double-click the file to run it:

NOTE: You do not need to perform this step if you are running

Windows 98.


I also found a some information on the Microsoft Web Site that might help you Go to:


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Posted by Henry of Katharine Gibbs School - New York on December 17, 2004