XADM: Directory Import Fails When Import File Includes DBCS

• Microsoft Exchange Server, versions 4.0 and 5.0

SYMPTOMS

If the import file for Directory Import includes some double-byte characters, the Directory Import command in the Microsoft Exchange Administrator program may fail to create the mailbox correctly.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange version 4.0. A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.0. This problem was corrected in the latest Microsoft Exchange 5.0 Server U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K

MORE INFORMATION

Directory Import divides the import file into several pages to read it. The page size is 4 KB on an x86 processor. When the import file includes double -byte characters and its boundary is at the point of a multiple of 4 KB, Directory Import may not work correctly.

In other words, when the lead byte of the double-byte character is at the 4,096-byte point and the trail byte is at the 4,097-byte point, this problem may occur.

Three kinds of phenomena have been confirmed:

• All mailboxes after 4 KB are not imported.
• Only the mailbox that includes 4-KB point is not imported.
• All attributes after 4 KB are out of order.