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XADM: OpenMsgStore Function Is Not Thread Safe


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This article was previously published under Q241556

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Symptoms

If a program is running multiple threads that both run OpenMsgStore repeatedly, a deadlock may occur after some time.

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Cause

This issue can occur if a thread (T1) is holding a critical section object (CS1) and is waiting for another critical section (CS2) that is being held by another thread (T2) that is waiting for the critical section (CS1), which leads to a deadlock situation.

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Resolution

To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
191014� XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

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Status

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.

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Keywords: KB241556, kbqfe, kbfix, kbexchange550sp4fix, kbexchange550presp4fix, kbbug, kbqfe, kbhotfixserver

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Article Info
Article ID : 241556
Revision : 5
Created on : 10/26/2006
Published on : 10/26/2006
Exists online : False
Views : 277