Microsoft KB Archive/909565

= When you run Outlook 2003 in Cached Exchange Mode, all the Outlook clients in the Exchange Server 2003 organization try to download the offline address book at the same time =

Article ID: 909565

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 you run Microsoft Office Outlook 2003 in Cached Exchange Mode, a period of very high network usage occurs. This high network usage occurs because all the Outlook clients in the Microsoft Exchange Server 2003 organization try to download the whole offline address book at the same time.

Additionally, when you click the arrow next to the Send/Receive Status icon in the Outlook status bar and then click Details, the status bar displays a message that is similar to the following:

Copying offline address book  file

Additionally, several events that have event ID 27 may be logged in the Application log. These events occur if the following conditions are true:
 * You are running Microsoft Office Outlook 2003 Service Pack 1 (SP1).
 * You have the Offline Address Book logging feature enabled.

Note By default, the Offline Address Book logging feature is enabled in Outlook 2003.

These events are similar to the following:

Event Source : Outlook

Event ID : 27

Event Type : Error

Description : OAB ModDif failed. (Details record in event data).

Event Source : Outlook

Event ID : 27

Event Type : Information

Description : Starting OAB Download.

Event Source : Outlook

Event ID : 27

Event Type : Information

Description : OAB Download Succeeded.



This problem occurs during the offline address book generation process. If an address that is entered in the offline address book contains an SMTP proxy address that is longer than 64 characters, the Outlook client does not apply the .diff file. The Outlook client then downloads the whole offline address book.

Note The 64-character limit includes everything to the left up to and including the at sign (@). The domain name is not included.



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 1 (SP1) before you apply 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 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 tool 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, 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, 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 OL

Keywords: kbqfe kbfix kbbug kbpubtypekc KB909565

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