Article ID: 313863 - View products that this article applies to.
This article was previously published under Q313863
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After Microsoft Outlook 2002 receives a meeting request in the Inbox, Outlook 2002 may create a duplicate calendar appointment. If a Collaboration Data Objects (CDO) application calls GetAssociatedAppointment and places a meeting in your Calendar first, and then you click the meeting request in Outlook 2002 to open it, a duplicate appointment is created. Microsoft Outlook 2000 does not create duplicate appointments in this scenario.
This problem can occur if CDO was not updated to reflect the way that Outlook 2002 uses index PR_OWNER_APPT_ID to determine duplicate appointments.
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378To download this fix, follow the instructions in the following article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/301378/EN-US/ )XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
316465The English version of this fix should have the following file attributes or later:
(https://support.microsoft.com/kb/316465/EN-US/ )Exchange 2000 Server Post-Service Pack 2 Collaborative Data Objects (CDO) Fixes Available
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NOTE: Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 2.
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server. This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 3.
This fix supercedes the fix that is described in the following Microsoft Knowledge Base article:
311535You must apply this fix (Q313863) after you install Exchange 2000 Service Pack 2 (SP2).
(https://support.microsoft.com/kb/311535/EN-US/ )XADM: Update Method Results in Duplicate Calendar Entries with Outlook 2002