XADM: Folder Names Become Question Marks in the Report Message from MBClean (254091)

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:

256986 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, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack

STATUS

Microsoft has confirmed that this is 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.