Problems after you install Winzip version 6.3 or 7.0 (196480)

Important 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:

256986 Description of the Microsoft Windows Registry

SYMPTOMS

While you are running Windows Explorer, a Microsoft Office version 7.0 for Windows 95 program, or a Microsoft Office 97 program, you may receive the following error message:

Explorer
This program has performed an illegal operation and will be shut down.

If you then click Details, you may receive the following error message:

Explorer caused an invalid page fault in module <unknown> at:<address>

CAUSE

This problem can occur if all of the following conditions exist:

You installed Winzip version 6.3 or 7.0 on your Windows 95-based computer.
You installed Internet Explorer version 4.0 but did not install the Windows Desktop Update component.

RESOLUTION

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.

To resolve this issue, use Registry Editor to delete the following registry key:

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ 
      AlwaysUnloadDLL

Important This registry key is no longer supported in Microsoft Windows 2000 or later.

MORE INFORMATION

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