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Exception access violation on iexplore.exe

Posted on 2000-03-17
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Last Modified: 2012-05-04
A user at my place of work received the following error intermitantly at a particular Web site:

"An application error has occurred and an application error log is being generated.  iexplore.exe

Exception access violation (0xc0000005), Address: 0x7717d385"

When receiving this error, his session using Internet Explorer is terminated.  I've seen this message on posting relating to other Microsoft products.  Can someone please explain this message, and provide corrective action?  Many thanks!
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Question by:GMCarr
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by:hes
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Explorer Access Violates When Viewing a File's Properties
Article ID: Q172705

The information in this article applies to:
Microsoft Windows NT Workstation version 4.0
Microsoft Windows NT Server version 4.0
Microsoft Windows NT Server version 4.0, Terminal Server Edition


SYMPTOMS
When you use Windows NT Explorer to view the properties of a file, an access violation occurs. If Dr. Watson is installed, it gives the standard AV pop-up error message, for example:


   An application error has occurred and an application error log is being
   generated.

   Explorer.exe
   Exception: access violation (0xc0000005), Address 0x77f64b53

CAUSE
This error can be caused if a file's property set has a corruption. In this case, the thumbnail for the file had an empty Binary Large Object Bitmap (BLOB) stored in the place of a CLIPDATA structure. Because Windows NT Explorer expects the serialized CLIPDATA to have a minimum size of 12 bytes but finds the empty BLOB to have only 8 bytes, it concludes that the discrepancy must be caused by data corruption and exits with the above error. During the exit, Windows NT Explorer cleaned up the allocated *CLIPDATA structure, but in so doing tried to free CLIPDATA.pClipData, which hadn't been allocated at the point of the failure.

The fix now zero initializes the CLIPDATA structure after allocation.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, please see the following article in the Microsoft Knowledge Base:


   Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed this to be a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.


Additional query words: prodnt

Keywords          : kbenv NT4SP4Fix kbbug4.00 ntgeneral kbfix4.00.sp4 NTSrvWkst
Version           : WinNT:4.0
Platform          : winnt
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix
 


Last Reviewed: April 10, 1999
© 1999 Microsoft Corporation. All rights reserved. Terms of Use.
 

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by:GMCarr
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by:GMCarr
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Much appreciated!  I'll scale down the technical buzzwords when addressing this with the user, but you've provided a very thorough and detailed answer. You will certainly make me look good!

Thanks very much
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