Exchange Service Host service crashes when you start the service on an Exchange 2010 server

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Article ID: 2750188 - View products that this article applies to.
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Symptoms

When you try to start the Microsoft Exchange Service Host service on a Microsoft Exchange Server 2010 server, the service crashes and the following event is logged in the Application log:
 

Log Name:      Application
Source:        MSExchange Common
Date:          Date
Event ID:      4999
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Computer
Description:
Watson report about to be sent for process id: Process ID, with parameters: E12, Build Type,  Version Number, M.Exchange.ServiceHost, M.Exchange.SACLWatcherServicelet,  M.E.S.S.Servicelet.VerifyAndRecoverSaclRight, System.NullReferenceException, XXXX, Version Number.
ErrorReportingEnabled: False


Additionally, the following event is logged in the System log:

Log Name:      System
Source:        Service Control Manager
Date:          Date
Event ID:      7034
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Computer
Description:
The Microsoft Exchange Service Host service terminated unexpectedly.  It has done this X time(s).


Cause

This issue occurs because the Exchange Service Host service encounters a System.NullReferenceException exception when the service tries to access the system access control list (SACL) during the startup process.

Resolution

To resolve this issue, install the following update rollup:
2746164 Description of Update Rollup 6 for Exchange Server 2010 Service Pack 2

Status

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

Properties

Article ID: 2750188 - Last Review: February 12, 2013 - Revision: 1.0
Applies to
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Keywords: 
kbqfe kbfix kbexpertiseinter kbsurveynew KB2750188

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