You cannot start the EMC or the EMS in an Exchange Server 2010 Service Pack 1 environment

Applies to: Exchange Server 2010 Enterprise

Symptoms


You cannot start the Exchange Management Console (EMC) or the Exchange Management Shell (EMS) in a Microsoft Exchange Server 2010 Service Pack 1 (SP1) environment. Additionally, you receive the following error message:
The type initializer for 'Microsoft.Exchange.Configuration.Tasks.Task' threw an exception.
Additionally, the following event is logged in the Application log on the Exchange Server 2010 server:

Cause


This issue occurs because an InvalidCastException exception occurs when the Exchange server reads the CustomerFeedbackEnabled flag. The exception causes the w3wp.exe process to crash.

Resolution


To resolve this issue, install the following update rollup:
2608646 Description of Update Rollup 6 for Exchange Server 2010 Service Pack 1

Status


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

More Information


For more information about the EMC, visit the following Microsoft website:For more information about the EMS, visit the following Microsoft website:For more information about the CustomerFeedbackEnabled flag, visit the following Microsoft website: