Outlook 2003 Calendar displays Incorrect Times when sharing Exchange Mailbox between 2 Domains

I'm having a strange Outlook 2003 related problem after going through my 'updated' Daylight Savings Time changes.  I have a network of about 50 domain PC's, all running XP Pro SP2 and Outlook 2003.  All clients connected to Exchange Server 2003 SP2 running on SBS2003 Premium Edition SP1.  For the updated DST changes, I did things in the following order:

1.)  I applied all applicable patches to the SBS2003 Server.
2.)  I applied all applicable patches to Exchange Server 2003 SP2.
3.)  I applied the applicable XP Pro patch for DST to every workstation individually.
4.)  Instead of using the Exchange Calendar tool, I chose to run the Outlook 2003 Calendar Tool individually
      on each domain workstation.  This worked correctly for the most part regarding moving users' calendar
     appointments to the correct times.  
5.) There are 2 domain machines running Vista Business that I did not have to apply any patches to in order
     for the time to be changed correctly.

Now, for the question:  When I come home, I always open Outlook 2003 on my home pc as well and synch w/ my work Exchange Server mentioned above.  This machine is running XP Pro SP2 and is on a Server 2003 domain that uses 2 domain controllers.  1 Domain controller is running Server 2003 and 1 is running 2000 Server.  Before the new DST changes took affect, I disabled 'automatic' DST changes on all computers on this domain.  All computers on this domain sych their time w/ the Windows Server 2000 Domain Controller.  I did not apply any DST patches to any of the machines except for the XP Pro workstation.  However, I still did not re-enable 'automatic' DST.  I manually changed the clock on the Server 2000 Domain Controller to match the new time.  When I open Outlook 2003 on the XP machine, all of my calendar appointments that take place during the 'new' DST period are 1 hour early.  They appear correctly at work on my work domain, just not here at home on my home domain.  Now, if I re-check the box for "automatic" DST on this XP machine, all of my appointments in Outlook appear at their normal times, but the clock moves erroneously ahead by one hour.  I've tried removing my profile in Outlook 2003 and recreating it, affectively forcing a resynch of my mailbox from the Exchange Server, but still no success.  I've also tried running the Outlook 2003 Calendar tool on this machine, in various modes, to no avail.  I've tried repatching this XP machines w/ the DST patch with no success.  I've also tried completely removing Outlook 2003 and reinstalling it from scratch, recreating my profile, and re-downloading my mailbox again, also all with no success on this.  Any ideas on how to fix this?

zagnutttt4Network SpecialistAsked:
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Erik PittiCommented:
Its because you changed the time on the Win2k box that your client apparently synchs it time with and did not patch it for DST.  The windows time service sends out GMT time and the clients apply their GMT offset -7 or -8 for pacific time to get the time thats displayed to the user.  The only way to fix this is to update your Windows 2000 and 2003 boxes as shown here for Win2k: http://support.microsoft.com/kb/914387 and here for Win2k3/XP: http://support.microsoft.com/kb/931836/

Then change the clock back on the servers to be the correct DST time and resynch your clients time with them.

Erik PittiCommented:
All the changes I suggested need to take place on your home network, the office network sounds like its fine.
zagnutttt4Network SpecialistAuthor Commented:
Hi chakote,

I agree that the changes that you mentioned need to take place on my home network, as the work network works fine.  I am going to look into correctly patching the Windows 2000 Server first, and go from there as you suggested.  I guess I had just assumed that there wasn't even a patch out there for anything older than Win2003 and XP w/ SP2 installed.  I hadn't even searched MS's website for it.  I am going to do that now.  I will keep you posted.
Erik PittiCommented:
There isn't technically a patch but a registry edit that you can perform.  They even have everything you need to paste into a .reg file to do the registry update on the site.
zagnutttt4Network SpecialistAuthor Commented:

I did as you said.  After (finally) installing SP4 on the 2000 box, I ran TZedit.exe on it to change the time period for DST.  I then patched the 2003 box.  Re-enabled automatic DST on the 2000 box and then restarted the time service on all other machines.  After that, I re-enabled automatic DST on all of the other machines as well.  This did the trick.  Now all of my machines are synched w/ the 2000 box, and are set up to change on the correct dates.  Best of all, my Outlook appointments are now scheduled correctly!!  

Thanks for your help!!!

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