The IMAP4 service crashes, and then event error 4999 occurs on a computer that is running Exchange Server 2007

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Article ID: 970118 - View products that this article applies to.
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The IMAP4 service crashes on a computer that is running Microsoft Exchange Server 2007. Then, you receive the following error message:

System.ObjectDisposedException in mailboxsession.get_timezone.

When this problem occurs, the following error is logged in Event Viewer:

Event Type: Error
Event Source: MSExchange Common
Event Category: General
Event ID: 4999
Watson report about to be sent to dw20.exe for process id: <ID>, with parameters: E12, c-RTL-AMD64, <version number>, M.E.Imap4, M.E.D.Storage, M.E.D.S.MailboxSession.get_TimeZone, System.ObjectDisposedException, 98d1, <version number>. ErrorReportingEnabled: True


This problem occurs because of a code defect.


To resolve this problem, apply the following update:
971534 Description of Update Rollup 1 for Exchange Server 2007 Service Pack 2


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Article ID: 970118 - Last Review: November 19, 2009 - Revision: 1.0
  • Microsoft Exchange Server 2007 Enterprise Edition
  • Microsoft Exchange Server 2007 Standard Edition
kbsurveynew kbexpertiseinter kbfix kbhotfixrollup kbqfe KB970118

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