XCLN: MAPIResolveName Does Not Properly Handle Multi-Byte Character Set (DBCS) Strings

ID: Q216049

The information in this article applies to:

Microsoft Exchange Server, version 5.5

SYMPTOMS

A simple Messaging Application Program Interface (MAPI) application passes a Double-Byte Character Set (DBCS) string to the MAPI call MAPIResolveName(). MAPIResolveName fails when a two-byte DBCS character contains 0x5b or 0x5c as one of its bytes.

CAUSE

A supporting routine used by MAPIResolveName() was not written to properly handle DBCS strings, and mistakenly interprets the bytes 0x5b and 0x5c as '[' and '\' respectively.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 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

Component: MAPI

File name	Version
Mapi32.dll	5.5.2535.0

STATUS

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

Additional query words:

Keywords : exc55 EXC55SP3Fix
Version : winnt:5.5
Platform : winnt
Issue type : kbbug