"Rundll32" Error After Viewing Properties for Network Adapter

The information in this article applies to:

• Microsoft Windows 95

SYMPTOMS

When you view the properties for a network adapter both in Device Manager and Network properties at the same time, you may receive the following error message after you close the System Properties or Network dialog box:

   Rundll32

   An error has occurred in your program. To keep working anyway, click
   Ignore and save your work in a new file. To quit this program, click
   Close. You will lose information you entered since your last Save.

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

   If the problem persists, contact the program vendor.

RESOLUTION

If you must view the properties for a network adapter both in Device Manager and Network properties at the same time, you may be able to work around this problem by closing the dialog box that you opened second before you close the dialog box you opened first.

STATUS

Microsoft is researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

If you open Device Manager first, and then open Network properties, the problem occurs if you close Device Manager first and then close Network properties. If you open Network properties and then open Device Manager, the problem occurs if you close Network properties first and then close Device Manager.