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Japanese DBCS characters are corrupted when you reply to a message or forward a message in an Exchange Server 2007 SP1, Exchange Server 2010, or Exchange Server 2010 SP1 environment

Symptoms
When you reply to a message or forward a message by using a Microsoft Office Outlook client in a Microsoft Exchange Server 2007 Service Pack 1 (SP1), Exchange Server 2010, or Exchange Server 2010 Service Pack 1 (SP1) environment, Japanese DBCS characters that appear in any of the following fields become corrupt:
  • The display name of the sender
  • The display name of the recipients
  • The subject
  • The file name of an attachment
  • The message body
This problem occurs if the field contains one byte Kana.

The problem also occurs if the message is sent by Outlook Web Access (OWA) in an Exchange Server 2007 SP1, Exchange Server 2010, or Exchange Server 2010 SP1 environment.

Note This article does not list all conditions under which this problem may occur.
Resolution
To resolve this issue, follow these steps:
  1. Install the latest Update Rollup or Service Pack for Exchange 2007 SP1.

    For more information about how to obtain the latest Exchange service pack or update rollup, go to the following Microsoft website:This hotfix is included in Exchange 2010 and in Exchange Server 2010 SP1.
  2. Configure the PreferredInternetCodePageForShiftJIS key to enable the hotfix. To do this, follow these steps:
    1. On the Exchange-based server that is running the Hub Transport role, open Windows Explorer.
    2. Locate the following folder:
      For Exchange 2007

      Drive:\Program Files\Microsoft\Exchange Server\Bin

      For Exchange 2010

      Drive:\Program Files\Microsoft\Exchange Server\V14\Bin
    3. Back up the EdgeTransport.exe.config file. Name the backup copy EdgeTransport.exe.config.old.
    4. Open the EdgeTransport.exe.config file in Notepad, and then locate the following line between the <appsettings> tag and the </appsettings> tag:
      <add key="PreferredInternetCodePageForShiftJIS" value="50220" />
      Notes
      • If this line does not exist between the <appsettings> tag and the </appsettings> tag, insert this line.
      • If you set the value of the PreferredInternetCodePageForShiftJIS key to 50222, this problem occurs.
    5. Save the changes, and then exit Notepad.
    6. Restart the Exchange Transport service.
More information
The resolution above modifying EdgeTransport.exe.config XML prevents the Exchange Transport service from stamping messages with a value of 50222.

In Exchange Server 2010 SP1 or SP2, the same problem can still occur because of Exchange RPC Client Access service or Outlook Web App(OWA) stamps messages with a value of 50222. For more information, see the following Microsoft Knowledge Base article:
2642153 Japanese DBCS characters are corrupted when you reply to a message or forward a message
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Properties

Article ID: 952583 - Last Review: 10/17/2014 05:38:00 - Revision: 8.0

  • Microsoft Exchange Server 2007 Service Pack 1
  • Microsoft Exchange Server 2010 Enterprise
  • Microsoft Exchange Server 2010 Service Pack 1
  • Microsoft Exchange Server 2010 Standard
  • kbexpertiseadvanced kbqfe KB952583
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