Update for Daylight Saving Time changes in 2007 for Exchange 2003 Service Pack 1 (KB 931978)

Brief Description

Update for Daylight Saving Time changes in 2007 for Exchange Server 2003 Service Pack 1 (SP1).

Overview

Starting in the spring of 2007, Daylight Saving Time (DST) start and end dates for the United States will transition to comply with the Energy Policy Act of 2005. DST dates in the United States will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November).

This update includes the changes for the United States DST change for the components affected in Microsoft Exchange. It also includes changes for the time zones in Canada which will make the same change to their DST transition dates from 2007.

IMPORTANT

If you are using Microsoft Exchange Server 2003 Service Pack 1 (SP1) and you install this update, third-party services such as BlackBerry or GoodLink may be affected. Shared mailboxes and Microsoft Entourage delegation scenarios may also be affected.

Click the following article number to view the article in the Microsoft Knowledge Base before you install this update.

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

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

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System Requirements

Supported Operating Systems: Windows 2000 Service Pack 4; Windows Server 2003; Windows Server 2003 R2 (32-Bit x86); Windows Server 2003 Service Pack 1

Exchange Server 2003 Service Pack 1 (SP1) must be installed prior to installing this update.

This update cannot be installed if you are using Exchange Server 2003 Service Pack 2 (SP2). Please refer to the following article number to obtain a version of this fix compatible with Exchange Server 2003 SP2.
926666 Update for daylight saving time changes in 2007 for Exchange 2003 Service Pack 2

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Instructions

Click the Download button on this page to start the download, or choose a different language from the drop-down list and click Go.
Do one of the following:

To start the installation immediately, click Open or Run this program from its current location.
To copy the download to your computer for installation at a later time, click Save or Save this program to disk.

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