Moving Pointer Over Frame Causes Exception in Explorer.exe

ID: Q181114

The information in this article applies to:

Microsoft Internet Explorer version 4.01 for Windows NT 4.0

SYMPTOMS

When you move the mouse pointer over a very small frame, you may receive an "Access violation exception in Explorer.exe" error message. When this occurs, the following summary of the exception is logged in the Drwtsn32.log file:

   Application exception occurred:
      App: EXPLORER.dbg (pid=218)
      When: 2/6/1998 @ 16:10:23.229
      Exception number: c0000005 (access violation)

Note that other issues can cause access violations in Internet Explorer. To determine whether you are experiencing this particular issue, search for the word "fault" in the Drwtsn32.log file. The following line verifies that you are experiencing the issue described in this article:

   FAULT ->70476865 8b4720   mov   eax,[edi+0x20]   ds:0126ea06=????????

CAUSE

This behavior occurs when a null pointer is referenced when the frame column width is less than 18 columns.

RESOLUTION

To resolve this behavior, obtain and install Microsoft Internet Explorer 4.01 Service Pack 1, which is available at the following Microsoft Web site:

   http://www.microsoft.com/ie/download/

STATUS

Microsoft has confirmed this to be a problem in Microsoft Internet Explorer version 4.01.

Additional query words:

Keywords          : kbenv kberrmsg msiew95 msient 
Version           : WINDOWS:4.01
Platform          : WINDOWS
Issue type        : kbprb

Last Reviewed: October 15, 1998