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

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:	ErrorEvent Source:	EXCDOEvent Category:	General Event ID:	8206Description:Calendaring agent failed with error code 0xfffff9bf while saving appointment. 

Event Type: ErrorEvent Source: EXCDOEvent Category: General Event ID: 8206Description:Calendaring agent failed with error code 0x8004010f while saving appointment.

The following event may also be logged:

Event Type:        WarningEvent Source:    MSExchangeIS Mailbox StoreEvent Category:                Views Event ID:              1173Description:Error 0x6bb deleting unused restricted view from folder <folder ID> on database "<storage group>\<store> ". 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.
RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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.
File nameFile versionFile sizeDateTime
Ese.dll6.5.7653.222,255,87205-Dec-200720:28
Exifs.sys6.5.7653.22196,28805-Dec-200716:28
Exwin32.dll6.5.7653.22175,61605-Dec-200702:00
Ifsproxy.dll6.5.7653.2218,43205-Dec-200718:15
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" 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
Properties

Article ID: 943721 - Last Review: 12/18/2007 22:37:17 - Revision: 1.2

Microsoft Exchange Server 2003 Standard Edition, Microsoft Exchange Server 2003 Enterprise Edition

  • kbautohotfix kbexpertiseinter kbhotfixserver kbqfe kbfix KB943721
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