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


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


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.


To resolve this issue, install the following update rollup:
2746164 Description of Update Rollup 6 for Exchange Server 2010 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: 2750188 - Last Review: Feb 12, 2013 - Revision: 1

Microsoft Exchange Server 2010 Service Pack 2, Microsoft Exchange Server 2010 Enterprise, Microsoft Exchange Server 2010 Standard