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An exception error is generated after you run a Set-AttachmentfilterListConfig command together with the ExceptionConnectors option on an Exchange 2007 SP1-based server

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Article ID:949463
Last Review:April 4, 2008
Revision:1.2

SYMPTOMS

When you run the Set-AttachmentfilterListConfig command together with the -ExceptionConnectors option on an Exchange Server 2007-based server, the command does not run successfully. Additionally, an exception is generated.

For example, you may run the following command:
Set-AttachmentfilterListConfig -ExceptionConnectors d18f518a-38e3-4349-9697-bc2ac318461f
When you run this command, you receive the following error message:
WARNING: An unexpected error has occurred and debug information is being generated: Unable to cast object of type 'System.Collections.Generic.List`1[Microsoft.Exchange.Data.Directory.SystemConfiguration.ReceiveConnector]' to type 'Microsoft.Exchange.Data.Directory.SystemConfiguration.ReceiveConnector[]'. Set-AttachmentfilterListConfig : Unable to cast object of type 'System.Collections.Generic.List`1[Microsoft.Exchange.Data.Directory.SystemConfiguration.ReceiveConnector]' to type 'Microsoft.Exchange.Data.Directory.SystemConfiguration.ReceiveConnector[]'. At line:1 char:31 + Set-AttachmentfilterListConfig  <<<< -ExceptionConnectors d18f518a-38e3-4349-9697-bc2ac318461f
Additionally, the follow event is logged in the Application log:

Event Type: Error
Event Source: MSExchange Common
Event Category: General
Event ID: 4999
User:  N/A
Computer: Servername
Description: Watson report about to be sent to dw20.exe for process id: <ID>, with parameters: E12, c-RTL-x86, <version>, powershell, M.E.Management, M.E.M.M.A.SetAttachmentFilterListConfig.InternalProcessRecord, System.InvalidCastException, 4e90, <version>.  ErrorReportingEnabled: False For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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RESOLUTION

To resolve this problem, install Update Rollup 2 for Exchange Server 2007 Service Pack 1.

For more information about Update Rollup 2 for Exchange Server 2007 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
948016 (http://support.microsoft.com/kb/948016/) Update Rollup 2 for Exchange Server 2007 Service Pack 1

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STATUS

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

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MORE INFORMATION

For more information about the Set-AttachmentfilterListConfig command, visit the following Web site:
http://technet.microsoft.com/en-us/library/bb676445(EXCHG.80).aspx (http://technet.microsoft.com/en-us/library/bb676445(EXCHG.80).aspx)

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APPLIES TO
•Microsoft Exchange Server 2007 Enterprise Edition
•Microsoft Exchange Server 2007 Standard Edition

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Keywords: 
kbfix kbexpertiseinter kbqfe KB949463

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