Update for daylight saving time changes in 2007 for Exchange 2003 Service Pack 2

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Article ID: 926666 - View products that this article applies to.
Important Before you install this update, you should be aware of potential issues that may affect Microsoft Outlook. For more information about these issues, click the following article number to view the article in the Microsoft Knowledge Base:
912918 Users cannot send e-mail messages from a mobile device or from a shared mailbox in Exchange 2000 Server and in Exchange Server 2003
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INTRODUCTION

An update for daylight saving time (DST) changes in 2007 is now available for computers that are running Microsoft Exchange Server 2003 Service Pack 2 (SP2).

Note Microsoft Exchange Server 2007 does not require a patch to correctly reference DST changes.

MORE INFORMATION

Update information

In the spring of 2007, the start dates and the end dates for daylight saving time (DST) in the United States will change to comply with the Energy Policy Act of 2005. The dates will change as follows:
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DSTIn 2007In previous years
Start dateSecond Sunday in March, 2:00 A.M.First Sunday in April, 2:00 A.M.
End dateFirst Sunday in November, 2:00 A.M.Last Sunday in October, 2:00 A.M.
A time zone update for DST that will address this issue for Microsoft Exchange Server 2003 is now available. This update includes the following:
  • The new 2007 DST start dates and end dates for the United States.
  • Changes to DST and time zone settings that will occur in Canada in 2007 (except in Newfoundland).
  • Changes to DST and time zone settings that have occurred since the products in the "Applies to" section were originally released. For example, this update includes some changes that were previously released as individual updates and documented in articles in the Microsoft Knowledge Base.
Note This update is cumulative. Therefore, if you have not yet applied either of the security updates that are described in the following security bulletins, you may have to change the Send As permissions on your mobile device to make sure that the mobile device continues to function as you expect.
  • MS06-019 (Store.exe version 6.5.7233.69 or a later version of Store.exe)
  • MS06-029 (Store.exe version 6.5.7650.28 or a later version of Store.exe)
For more information about the steps that are required to appropriately update user permissions, click the following article numbers to view the articles in the Microsoft Knowledge Base:
912918 Users cannot send e-mail messages from a mobile device or from a shared mailbox in Exchange 2000 Server and in Exchange Server 2003
If you are using Microsoft Exchange Server 2003 Service Pack 1 (SP1) and you install the MS06-019 security update, Microsoft Entourage and third-party services such as Blackberry or GoodLink may be affected. If you are using Microsoft Exchange Server 2003 Service Pack 1 (SP1) or Microsoft Exchange Server 2003 Service Pack 2 (SP2) and you install the MS06-029 security update, third-party services such as BlackBerry or GoodLink may be affected. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
916803 MS06-019: Vulnerability in Microsoft Exchange Server could allow remote code execution
912442 MS06-029: Vulnerability in Microsoft Exchange Server could allow script injection when Exchange Server runs Outlook Web Access

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Prerequisites

Before you install this update for Exchange, you must install Microsoft Exchange Server 2003 Service Pack 2 (SP2) and the time zone update for Windows.
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
836993 How to obtain the latest service packs for Exchange Server 2003
942763 December 2007 cumulative time zone update for Microsoft Windows operating systems

Restart requirement

You do not have to restart the computer after you apply this update. However, the Microsoft Exchange Information Store service and all dependent services will be restarted.

File information

The following file is available for download from the Microsoft Download Center:
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Download
Download the Exchange2003-KB926666-v2-x86-ENU.exe package now.
Release Date: January 16, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

The English version of this update 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.
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File nameFile versionFile sizeDateTimePlatform
Cdo.dll6.5.7651.61718,84814-Dec-200623:00x86
Cdoex.dll6.5.7651.613,945,47214-Dec-200622:15x86
Davex.dll6.5.7651.611,139,71214-Dec-200622:08x86
Excdo.dll6.5.7651.613,692,54414-Dec-200622:15x86
Exoledb.dll6.5.7651.612,616,32014-Dec-200606:08x86
Exosal.dll6.5.7651.6169,12013-Dec-200623:33x86
Lsmexhc.dll6.5.7651.61125,44014-Dec-200621:23x86
Madfb.dll6.5.7651.61525,31214-Dec-200622:15x86
Mdbmsg.dll6.5.7651.613,375,10414-Dec-200600:16x86
Rtdsmcal.dll6.5.7651.6133,28014-Dec-200621:29x86
Store.exe6.5.7651.614,879,36013-Dec-200623:37x86

Why is the update required for Exchange?

Microsoft calendar software such as Outlook depends on the operating system time zone information to display time information. However, Collaboration Data Objects (CDO)-based programs such as Outlook Web Access depend on separate internal time zone tables. This update modifies these internal time zone tables to match the changes in time zone settings.

Without this update, calendar items in CDO-based programs and in Outlook Web Access will operate as if standard time is in effect during the extra weeks of daylight saving time. For example, without this update CDO-based programs will operate in standard time during the following periods in 2007:
  • March 11, 2007 through April 1, 2007
  • October 28, 2007 through November 4, 2007

How the update affects earlier versions of Exchange

Exchange Server 2003 Service Pack 1 (SP1)

This update cannot be installed if you are using Exchange Server 2003 Service Pack 1 (SP1). For more information about how to obtain a version of this fix that is compatible with Exchange Server 2003 SP1, click the following article number to view the article in the Microsoft Knowledge Base:
931978 Update for daylight saving time changes in 2007 for Exchange 2003 Service Pack 1

Exchange 2000 Server and Exchange Server 5.5

If you are running Exchange 2000 Server, Exchange Server 5.5, or other earlier versions of Exchange Server, contact the Microsoft account manager or the Technical account manager for more information.

REFERENCES

For more information about terminology that Microsoft uses to describe software updates, 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

Technical revisions

The review dates for this article may reflect minor editorial or structural revisions to this content. The major technical revisions to this content are listed in the following table.
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DateRevisions
November 15, 2006Original version
December 26, 2006Corrected the URL in the "How the update affects earlier versions of Exchange" section
January 16, 2007The following changes were made to this article:
  • Updated the title, the "Update information" section, the "Prerequisites" section, and the "File information" section to contain information for version 2 of the DST update
  • In the "How the update affects earlier versions of Exchange" section, added information that applies to Exchange Server 2003 Service Pack 1
January 17, 2007Updated the download URL to reflect version 2 of DST update
January 24, 2007Added a note that states that Exchange 2007 does not require a DST update
January 29, 2007Removed outdated Exchange 2003 SP1 information in the "How the update affects earlier versions of Exchange" section
January 31, 2007The following changes were made to this article:
  • Added Outlook Web Access information to the "Why is the update required for Exchange?" section
  • Added the "Important" note at the top of the article about potential issues that may affect Outlook
February 11, 2007Added a note in the "Update information" section about the fact that the DST update is cumulative and about potential complications with Send As permissions and with mobile devices
February 12, 2007The following changes were made to this article:
  • Added information about the Exchange 2003 Service Pack 1 version of the software update to the "How the update affects earlier versions of Exchange" section
  • Replaced outdated cross-references to Microsoft Knowledge Base article 928388 with cross-references to Microsoft Knowledge Base article 931836
  • Corrected the note in the "Update information" section about the fact that the DST update is cumulative and about potential complications with Send As permissions and with mobile devices
March 12, 2007Added Revisions table
March 2, 2007Revised Revisions table
March 2, 2007Changed date format in "Revisions" table to long format
March 8, 2007Changed section heading from "Revisions" to "Technical revisions"
March 21, 2007Added missing revisions to "Technical revisions" table

Properties

Article ID: 926666 - Last Review: January 15, 2008 - Revision: 14.1
APPLIES TO
  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition
  • Microsoft Exchange Server 2003 Service Pack 2
Keywords: 
kbupdate kbexpertiseadvanced kbhowto kbinfo KB926666

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