This article was previously published under Q264335
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If you develop custom information store providers that support Unicode, when you copy folders that contain subfolders from the Exchange Server information store to the custom information store, the subfolders in the sample information store may be created with truncated subfolder names.
This problem can occur because the call to the IMAPIFolder::CreateFolder() function passes the ulFlags parameters as 0, which implies that the string is American National Standards Institute (ANSI), even though the string that is passed is Unicode. According to documentation, the ulFlags variable should be set to MAPI_UNICODE if the passed-in strings are in Unicode format. If the MAPI_UNICODE flag is not set, the strings are in ANSI format.
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 theMicrosoft Knowledge Base:
191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack
Microsoft has confirmed that this is a problem in Microsoft Exchange Server 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.