A troubleshooting guide to the Exchange Calendar Update Tool (Msextmz.exe)

Humm, a bit late me thinks.

Source: http://support.microsoft.com/default.aspx?scid=kb;en-us;934001

The Exchange Calendar Update Tool (Msextmz.exe) is the tool that Exchange administrators can use to apply time zone changes to a calendar for one or more users. The Exchange Calendar Update Tool uses the Time Zone Data Update Tool for Microsoft Office Outlook (the Outlook Time Zone Data Update tool or Tzmove.exe) to update Exchange calendar information. This document describes how the Exchange Calendar Update Tool works. This article also contains some of the common error results that you may experience when you run it.

DST 2007 – Hurry up the clock is ticking!

So this is it!  You have this weekend as an outage window before the brown stuff hits the fan.  So I have been around the blogoshpere and the web and here are a list of resources that you might find handy this weekend.  Oh by the way, if you are leaving it to this weekend .. WHY you could have done it all last weekend?!

So this is all the stuff I have blogged about so far: http://blogs.flaphead.dns2go.com/archive/tags/DST2007/default.aspx

On August 8, 2005, President George W. Bush signed the Energy Policy Act of 2005. This Act changed the time change dates for Daylight Saving Time in the U.S. Beginning in 2007, DST will begin on the second Sunday in March and end the first Sunday in November. The Secretary of Energy will report the impact of this change to Congress.

… and this is the BEST BIT: Congress retains the right to resume the 2005 Daylight Saving Time schedule once the Department of Energy study is complete.

Essentially, you need to apply a patch to every windows desktop or server to take into account the change in DST

The main Microsoft Resource is there: http://support.microsoft.com/gp/cp_dst  This is a really good site, and has a kind of wizard where you can select your OS and Applications.  It will then list out what fixes you need to apply … really cool!

If you are using Microsoft Exchange, then you need to apply a CDO patch and run the rebais tool against users that in the affected locations.  So The 2007 daylight saving time implementation is as follows: Clocks change at 02:00 A.M. local time.

On March 11, 2007, clocks will move forward one hour from 01:59 A.M. to 03:00 A.M. On November 4, 2007, clocks will move back one hour from 01:59 A.M. to 01:00 A.M.

This change affects the following time zones:

GMT-3:30 Newfoundland
GMT-4 Atlantic
GMT-5 Eastern US
GMT-6 Central US
GMT-7 Mountain US
GMT-8 Pacific US
GMT-9 Alaska

So apply the OS fix and the your Exchange Fix.  For Exchange 2003 with SP2, go here http://support.microsoft.com/kb/926666/en-us for the CDO fix.  You have other flavours of Exchange, check out the Microsoft Resource above.

After you install the DST updates for Microsoft Windows, all old appointments that occur during the DST change periods will be incorrectly displayed as occurring one hour later. This is true for both recurring and single-instance appointments. These appointments must be updated so that they will be displayed correctly in Outlook, in Outlook Web Access, and in CDO-based applications.

Now you need to run the rebais tool.  So it comes in two flavours, Client and Server.  The client tool and be set to run against a users mailbox when the log in, or manually by the user.  The Server tool, uses the client tool, but allows an administrator to make the changes (this is generally the best option)

So you can download the outlook tool from here: http://support.microsoft.com/kb/931667/en-us and the server tool from here: http://support.microsoft.com/kb/930879/en-us

I hope this helps!

Other Resources:
Bharat has some excellent resources on his Exchange Blog here: http://exchangepedia.com/blog/2007/03/dst-2007-rollup-post.html

RIM/Blackberry: http://blogs.flaphead.dns2go.com/archive/2007/01/22/us-daylight-saving-time-changes-and-blackberry.aspx

Lotus/ IBM: http://blogs.flaphead.dns2go.com/archive/2007/01/23/lotus-software-daylight-saving-time-dst-changes-for-2007-will-affect-lotus-software-products.aspx

Symantec: Symantec enterprise products and daylight saving time

Am i am sure you can google for others: http://www.google.ie/search?hl=en&q=dst+2007&meta=


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Meetings are moved back one hour in an Exchange 2003 organization

Don’t panic, its not related to DST2007

Source: http://support.microsoft.com/default.aspx?scid=kb;en-us;931222

Meetings are moved back one hour in an Exchange 2003 organization if the meetings are scheduled between September 16, 2006, and October 7, 2006

This problem occurs because the old algorithm for the Jerusalem (GMT + 02:00) time zone sets the standard time to the first Sunday in October. Israel daylight saving time and standard time transitions changed for the year 2006. A new algorithm is being used that has the following rules:

  • Move to daylight saving time at 2:00 A.M. on the last Friday before April 2.
  • Move to standard time at 2:00 A.M. on the Sunday before the tenth day of the Jewish month of Tishrei.

Note The decision to move back to standard time according to the Jewish calendar makes sure that the transition will always occur on Saturday night between Rosh Hashana and Yom Kippur.

Symantec enterprise products and daylight saving time

Rob sent me this link with news from Symantec about DST2007 Source: http://service1.symantec.com/SUPPORT/tsgeninfo.nsf/docid/2007011911191539?Open&src=w


Enterprise Vault is going to need a patch (http://seer.entsupport.symantec.com/docs/286967.htm) but most of the other apps will be sort with the Windows patch


DST 2007: MSIT Guidance Published

Ohhh.  With the steady flow of DST information is starting to trickle down to more manageable levels.  MSIT has finally release some additional DST 2007 Guidance.

·         MSIT DST Assessment Checklist (5 page PDF)

·         MSIT DST Enterprise Response Plan (22 page PDF)

·         MSIT DST Patching Overview (1 page PDF flowchart)

·         MSIT DST Exchange TZ Update Tool Guidance (5 page PDF)

·         MSIT DST Outlook TZ Update Package Guidance (4 page PDF)

Support WebCast: DST 2007 Exchange Communication

You can download this WebCast now for “offline” viewing.

Go here (https://www.livemeeting.com/cc/msevents/view?id=wc020207) stick in you name and then download the 4mb WMV file.

 It would be a great idea if MS made the available automatically via an RSS feed

Humm, can’t sync the wmv to my Zune! .. says that it cannot convert the file to the format required by my Zune Device  .. wonder why!

Virtual Machine for Microsoft Exchange Calendar Update Tool

Cool, shame it wasn’t out a bit earlier!

Source: http://www.microsoft.com/downloads/details.aspx?FamilyId=03D4251D-370F-486D-BB2F-64FF14C546AD&displaylang=en

The Exchange Calendar Update Tool enables administrators to update, using the Time Zone Data Update Tool for Microsoft® Office Outlook®, multiple user mailboxes, thereby avoiding the challenges involved with broadly deploying the Outlook Time Zone Data Update Tool to all end-users.

Shame the download link doesn’t work ! so I can’t tell you what the virtual machine has in it

Time Zone Data Update Tool

Do you know what, some time it plays to read a KB!  I am sure you have checked out http://support.microsoft.com/kb/931667.  Under “Why the Time Zone Data Update Tool is required”  It says …

Calendar items are created in Outlook by using Coordinated Universal Time (UTC) format. UTC is an international standard 24-hour timekeeping system. Time zone information for Outlook is obtained from the Windows operating system in which the calendar items are created and is obtained at the time that the calendar items are created.

For example, an 8:00 A.M. appointment on March 1, 2007 in Redmond, Washington is stored in Outlook as UTC 4:00 P.M. In this case, DST has not yet started, and Redmond time is eight hours behind UTC.

When an update is applied to the Windows operating system to accommodate the new DST definitions, the computer’s local time is changed to the extended DST time. However, the UTC is not adjusted when the local time on the computer is adjusted. Therefore, calendar items that are added to Outlook during the extended DST period are off by one hour. 

So by the sounds of it, you only need to use the tool on server that are in the affected time zone

Update2: Microsoft Exchange Calendar Update Tool

Gerrard came up with an issue.  The tool will not install on a workstation if you have the Exchange 5.5 Admin tool installed on it. (not tested it with any other flavours of Exchange yet.  Let me know)

It looks like the tool is checking the HKLMSOFTWAREMicrosoftExchange registry key. 

Gerrard renamed the key and the install worked.  He then renamed it back :-|


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February 2007 cumulative time zone update for Microsoft Windows operating systems

WHAT YOU MUST BE JOKING … a newer patch! http://support.microsoft.com/?id=931836 

So companies have been testing the “old” one and now have to do it all again!

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, at 2:00 A.M. on the second Sunday in March. DST will end one week later, at 2:00 A.M. on the first Sunday in November.

The update that this article describes changes the time zone data to account for the DST change for the United States. This update also includes other DST-related changes, time zone-related changes, and settings-related changes. Some of these changes will occur in 2007. Some of these changes have occurred since the products that are listed in the “Applies To” section were originally released. The update that this article describes is a cumulative update rollup that includes all the changes that were previously released in Microsoft Knowledge Base articles 928388 and 929120. This update also describes some additional changes since the last cumulative update in Microsoft Knowledge Base article 928388.