Q254091: XADM: Folder Names Become Question Marks in MBClean Message

Article: Q254091
Product(s): Microsoft Exchange
Version(s): winnt:5.5 SP3
Operating System(s): 
Keyword(s): kbtool kbExchange550preSP4fix kbExchange550sp4Fix
Last Modified: 11-JUN-2002

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 SP3 
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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

  Q256986 Description of the Microsoft Windows Registry

SYMPTOMS
========

If you use the Mailbox Management tool included with Exchange Server 5.5 Service
Pack 3 (SP3) to clear a mailbox that has a folder with its name in double-byte
character set (DBCS), the folder name may become question marks in the report
message from MBClean, as shown in the following example:

  1 items were moved from the \?????? folder to the System Cleanup folder.

This behavior occurs only when the Exchange Server computer is running an
English-language version of Microsoft Windows NT Server.

CAUSE
=====

MBClean logs on to each mailbox and searches each subfolder for the overdue
messages. To generate a report message, it calls the GetProps() function to
retrieve the display name of each subfolder. The GetProps() function converts
the folder name from Unicode to the native code page of MBClean, which
correlates to the version of Windows NT Server. In this case, it is converted to
English but not DBCS.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server 5.5.
For additional information, please see the following article in the Microsoft
Knowledge Base:

  Q191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5 Service Pack 3. This problem was first corrected in Exchange Server
5.5 Service Pack 4.

MORE INFORMATION
================

The new version of MBClean introduces the following new registry key for the
code page of the folder name:

  DWORD:
  "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeMCA\Parameters\SecondCodePage"

NOTE: For example, the value is 936 for Chinese Simplified (CHS).

MBClean uses this key instead of the native code page of MBClean itself.

If there are several kinds of DBCS clients in a site, you need to group them on
different servers and add this registry key with a corresponding value on each
server.

Additional query words: codepage

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Keywords          : kbtool kbExchange550preSP4fix kbExchange550sp4Fix 
Technology        : kbExchangeSearch kbZNotKeyword2 kbExchange550SP3
Version           : winnt:5.5 SP3
Issue type        : kbbug
Solution Type     : kbfix

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