I've searched the Microsoft Website but found nothing exactly like this. I've tried running sfc.exe and replacing corrupted system files. I've reinstalled Windows 98 several times. I've replaced Explorer.exe and mfc42.dll (actually, my computer has 11 copies of mfc42.dll in at least 5 versions in various directories; several of these are apparently installed by Windows 98 itself; others probably came with various software) several times also. One article on MS Website discussed compatibility problems between WinExplorer and Direct CD software, but this supposedly arises when you try to open Direct CD from Explorer -- my problem arises immediately when I click on the Explorer icon. The problem seems to have arisen after I ran some disk cleanup operations with System Suite 2000 so I installed System Suite, but that didn't help.

I advised my friend to use Start/Run/MFC and replace OLEAUT32.DLL.

We then used F8 to boot to DOS and ran SCANREG /FIX to scan and repair the registry.

(We also ran generic VGA drivers & deleted her printers, which may or may not have contributed to the fix).

It looks like these steps fixed the problem.

Good luck with fixing yours?

- Stephan

For reference, see the following Microsoft Knowledgebase article:

Q245001 OL2000: Error Message "Invalid Page Fault in Module Mfc42.dll"
http://support.microsoft.com/support/kb/articles/q245/0/01.asp
Suggests: "This problem occurs if you have an outdated or mismatched version of Oleaut32.dll installed on your computer."

A friend of mine is having a similar problem. For instance, every time she starts Control Panel, the MFC42.DLL error appears. We've tried replacing this file using SFC, and have also scanned for virus, but no success yet. Interestingly, the problem does not occur in Safe Mode, which suggests that it's due to either a device driver (video, printer, etc.) or corrupt registry.

Have you had any success yet? I'm going to suggest to my friend to try using generic drivers (VGA-mode video, delete printer, etc.) and also run SCANREG in DOS mode.

Hopefully one of us will find a solution. Please post if you do.

Thanks,

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