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Q149387: XFOR: MSMI Terminating with Memory Access Violation, Event ID 23

Article: Q149387
Product(s): Microsoft Exchange
Version(s): winnt:4.0,5.0
Operating System(s): 
Keyword(s): kbusage
Last Modified: 23-MAR-1999

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The information in this article applies to:

- Microsoft Exchange Server, versions 4.0, 5.0 
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SYMPTOMS
========

The MS Mail Connector Interchange (MSMI) may terminate unexpectedly with the
following events reported to the application log:

  Event ID: 2380
  Source: MSExchangeMSMI
  Description:
  A memory access violation has occurred that prevents further processing of a
  message. The access violation that occurred is an attempt to read from
  0x480df78. Please refer to the immediately following event(s) logged by MS
  Mail Connector Interchange for more information on the message that could not
  be processed. (Exception address: 0x4496c2.)

NOTE: The exception addresses above are examples; they will not match exactly
every time.

CAUSE
=====

The MSMI is freeing a block of heap memory before the actual process is done
with it. When the process tries to access this freed area of memory, an access
violation occurs.

STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 4.0. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 4.0. For information on obtaining the Service
Pack, query on the following word in the Microsoft Knowledge Base (without the
spaces):

  S E R V P A C K

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version
5.0. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.0. For information on obtaining the Service
Pack, query on the following word in the Microsoft Knowledge Base (without the
spaces):

  S E R V P A C K


Additional query words: heap corruption crash

======================================================================
Keywords          : kbusage 
Technology        : kbExchangeSearch kbExchange500 kbExchange400 kbZNotKeyword2
Version           : winnt:4.0,5.0
Issue type        : kbbug
Solution Type     : kbfix

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