Microsoft KB Archive/923164

= A user receives a SYNC_5 error when the user tries to synchronize calendar items on a mobile device with Exchange Server 2003 =

Article ID: 923164

Article Last Modified on 10/25/2007

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APPLIES TO


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

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SYMPTOMS
When a user tries to synchronize calendar items on a mobile device with Microsoft Exchange Server 2003, the user receives a SYNC_5 error. Additionally, duplicate calendar items are created on the Exchange server every time that the user tries to synchronize calendar items.

This problem occurs if you registered an event sink for the user's Calendar folder on the Exchange server.



CAUSE
This problem occurs if the event sink contains code that modifies new items that are saved to the user's Calendar folder. In this case, when synchronization is started, DAV responses from the mailbox server do not contain a &quot;ResourceTag&quot; header. This causes the SYNC_5 error.

For example, this problem occurs if the event sink contains code that resembles the following code: Sub IExStoreSystemEvents_OnSyncSave … If (lFlags And EVT_SYNC_BEGIN) > 0 Then … objRecord.Fields.Item(&quot;urn:schemas:exchint:someinfo&quot;).Value = &quot;Some Extra Info&quot; objRecord.Fields.Update … End If … End Sub



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 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
You must install Microsoft Exchange Server 2003 Service Pack 2 (SP2) before you install the hotfix.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

836993 How to obtain the latest service packs for Exchange Server 2003

Restart requirement
You do not have to restart the computer after you apply the hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The global 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 the terminology that Microsoft uses for software that is corrected after it is released, 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

Additional query words: XADM

Keywords: kbexchmobility kbhotfixserver kbqfe kbfix kbbug kbpubtypekc KB923164

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