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

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

Important Before you install this update, you should be aware of potential issues that may affect Microsoft Outlook.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: For more information about an Exchange 2003 Service Pack 2 update for other time zones in the United States and Canada, click the following article number to view the article in the Microsoft Knowledge Base: Note Microsoft Exchange Server 2007 does not require an update to correctly reference DST changes.

Update information

In the spring of 2007, the start dates and the end dates for DST in Newfoundland will change to comply with the Energy Policy Act of 2005. The dates will change as follows: A time zone update for DST that will address this issue in Exchange Server 2003 SP2 is now available.

Prerequisites

Before you apply this update for Microsoft Exchange Server 2003, you must install Exchange Server 2003 SP2 and the time zone update for Microsoft Windows.

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

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 stopped and then restarted.

File information

The following file is available for download from the Microsoft Download Center:
Download the Exchange2003-KB931915-x86-ENU.exe package now. Release Date: February 19, 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: 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.

Why the update is required for Exchange Server

Microsoft calendar software, such as Outlook, depends on the operating system's 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 were 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

What to consider if you are running Exchange Server 2003 Service Pack 1 (SP1)

This update cannot be applied if you are using Exchange Server 2003 SP1.

For more information about how to obtain a version of this update that is compatible with Exchange Server 2003 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base: Update 931978 includes the changes for all time zones in the United States and Canada. This includes DST 2007 changes for Newfoundland.

For more information about the terminology that Microsoft uses to describe software updates, click the following article number to view the article in the Microsoft Knowledge Base: