Microsoft KB Archive/943721

= Event ID: 8206 occurs when a MAPI-based application modifies calendar items in Exchange 2003 =

Article ID: 943721

Article Last Modified on 12/18/2007

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APPLIES TO


 * Microsoft Exchange Server 2003 Standard Edition
 * Microsoft Exchange Server 2003 Enterprise Edition

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SYMPTOMS
On a Microsoft Exchange Server 2003-based server, applications that are based on custom MAPI or on Collaboration Data Objects (CDO) are used to modify calendar items. After many such changes, the following events are logged in the Application event log: Event Type:   Error Event Source:  EXCDO Event Category: General Event ID:  8206 Description: Calendaring agent failed with error code 0xfffff9bf while saving appointment. Event Type: Error Event Source: EXCDO Event Category: General Event ID: 8206 Description: Calendaring agent failed with error code 0x8004010f while saving appointment. The following event may also be logged: Event Type:       Warning Event Source:   MSExchangeIS Mailbox Store Event Category:               Views Event ID:             1173 Description: Error 0x6bb deleting unused restricted view from folder  on database &quot; \ &quot;. Microsoft Exchange Information Store will try to delete the view again at the next maintenance interval.



CAUSE
This problem occurs because a counter is incremented every time that a recurring meeting is modified. This counter eventually reaches a limit. This limit blocks additional modifications.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Exchange 2003 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
The following list contains prerequisites for the hotfix:
 * Microsoft Exchange Server 2003 SP2

Restart requirement
You do not have to restart the computer after you apply this hotfix. However, the following services are stopped and then restarted when you apply this hotfix:
 * Microsoft Exchange System Attendant
 * Exchange Installable File System (ExIFS)
 * IIS Admin service and all dependent services

Hotfix replacement information
This hotfix does not replace a previously released hotfix.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

For more information about the naming schema for Exchange software updates, click the following article number to view the article in the Microsoft Knowledge Base:

817903 New naming schema for Exchange Server software update packages

Keywords: kbexpertiseinter kbhotfixserver kbqfe kbfix KB943721

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