I'm sure that's the source of heartburn for IT Administrators all over the country right now. I just got done with some DST training as support engineers (from all product areas related or not) across MSFT are being asked to help with the call volumes right now and through the weekend. This is definitely an all support hands on deck event throughout the company.
Some media outlets are touting this as a Mini-Y2K, like this recent NY Times article:
I remember exactly where I was on December 31, 1999 at a previous company, all IT staff on board waiting for the change to the new millennium, but we had already done all of our homework and testing and... it was 12:01am and we were all still alive.
By now, everyone has visited http://Microsoft.com/dst2007 , but if you're the IT Admin and you don't want a 'Wizard' and just want all of the information in front of you, check out this link if you have not already: http://support.microsoft.com/gp/dst_topissues/#a3 Scroll down to Microsoft IT deployment guidance and use Office 2007 to open the XPS or PDF documents. These documents should answer all of your toughest questions:
Here's the OS and Outlook/Exchange/Server patching order:
1. Patch Server OS
2. Patch Client OS
3. Patch Exchange CDO
Heavy OWA users:
4. Patch CDO
** The change in patching/rebasing order is ONLY relevant if OWA users create recurring appointments from within OWA. Which explains this new order.
What to do before you run the Exchange tool
Before you run the Exchange tool, make sure that client and server computers are updated correctly with the following updates:
Install the Windows daylight saving time update on clients. For more information about how to update a computer that is running Windows operating system software, click the following article number to view the article in the Microsoft Knowledge Base:
931836 (http://support.microsoft.com/kb/931836/) February 2007 cumulative time zone update for Microsoft Windows operating systems
What to do after you run the Exchange tool
After you finish updating all Exchange servers in your environment, install the following updates on the Exchange servers:
926666 (http://support.microsoft.com/kb/926666/) Update for daylight saving time changes in 2007 for Exchange 2003 Service Pack 2
Then, Push OL tool to people who were missed, which you can determine from the errors.txt log which catches users without TZs, odds are these are people who’ve not organized meetings, but to be sure you can send the OL tool out to them, then push out the CDO. These skipped users would not be OWA users, otherwise their TZ would be known.
So will I remember exactly where I was on March 11, 2007 at 1:59am, no, probably not, because my mailboxes and calendars are already updated and I'm running Vista. :)