Microsoft KB Archive/898782

= A third-party MAPI program stops responding, and Exchange Server 2003 intermittently does not deliver messages =

Article ID: 898782

Article Last Modified on 10/25/2007

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APPLIES TO


 * Microsoft Exchange Server 2003 Enterprise Edition
 * Microsoft Exchange Server 2003 Standard Edition

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SYMPTOMS
When you use a third-party MAPI program in Microsoft Exchange Server 2003, over time, the third-party MAPI program stops responding. Additionally, Exchange Server 2003 intermittently does not deliver messages. During this period, if you monitor memory usage for the MAPI program, you find that there is a steady increase in memory usage until no free system memory is available. Eventually, you have to restart the Microsoft Exchange Information Store service (Store.exe) to resume using the MAPI program and the Exchange messaging services.



CAUSE
This problem occurs if the third-party MAPI program logs on to a mailbox and then makes repeated calls to the OpenMsgStore method to open additional Exchange mailboxes. Memory is leaked in each call until no free system memory is available.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
Microsoft Exchange Server 2003 Service Pack 1 (SP1) must be installed before you install the hotfix.

Restart requirement
You do not have to restart the computer after you install the hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version            Size    File name --  08-Jul-2005  02:02  6.5.7233.36     1,320,960  Emsmdb32.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

817903 New naming schema for Exchange Server software update packages

Additional query words: XADM

Keywords: kbqfe kbhotfixserver kbexchange2003presp2fix kbfix kbbug kbpubtypekc KB898782

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