OL2002: The Exchange Client Extension "IExchExtCallBack::SetRecipients" Call Does Not Update the User Interface (303975)

SYMPTOMS

When you use Microsoft Exchange Client Extensions with Outlook, the IExchExtCallBack::SetRecipients call does not display the recipients to the Outlook user interface. Recipients are set in the recipients list, and recipients receive their messages, but they are not displayed in recipient controls.

CAUSE

This problem can occur if Outlook does not update the recipients to the appropriate recipient controls (the To field, the Cc field, and the Bcc field).

RESOLUTION

To resolve this problem, obtain the latest service pack for Microsoft Office XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

307841 OFFXP: How to Obtain the Latest Office XP Service Pack

The English version of this fix should have the following file attributes or later:

   Date        Time         Version       Size       File name    
   -------------------------------------------------------------
   7/6/2001    05:36:36 PM  10.0.3103.0   6,297,928  Outllib.dll

WORKAROUND

To work around this problem, use the Outlook object model. For additional information about how to use Outlook object model from Microsoft Visual C++, click the article number below to view the article in the Microsoft Knowledge Base:

259298 HOWTO: Use Microsoft Outlook Object Model From Visual C++ Through an #IMPORT Statement

286408 White Paper: Microsoft Outlook and Exchange Client Extensions

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft Office XP Service Pack 1.

MORE INFORMATION

For additional information about Exchange Client Extensions, click the article numbers below to view the articles in the Microsoft Knowledge Base:

285999 INFO: How To Build A Minimal Client Extension with VC++

199343 INFO: The Basics of Exchange Client Extensions