Bron: patch management mailinglist

You can use the "Microsoft Exchange Calendar Update Tool" to avoid using the "Outlook Time Zone Data Update Tool aka rebasing tool" or use it combined with the OL rebasing tool.

How to address daylight saving time by using the Exchange Calendar Update Tool
http://support.microsoft.com/kb/930879
Download available now:
http://www.microsoft.com/downloads/details.aspx?familyid=a9336886-4b28-4010-9416-36d38429438d&displaylang=en

On the above download page, it says:
"The Exchange Calendar Update Tool enables administrators to avoid the challenges involved with broadly deploying the Outlook tool to all users and ensuring that each user runs the tool correctly"
This is not 100% accurate....
see the "Recommended sequence of DST update actions" on http://support.microsoft.com/gp/dst_topissues that explains much better the 4 scenarii available

KB930879 does not appear yet on
www.microsoft.com/windows/timezone/dst2007.mspx and http://www.microsoft.com/DST2007, both being redirected to http://support.microsoft.com/gp/cp_dst

http://support.microsoft.com/gp/dst_topissues has also not been yet updated with the link to kb930879 Pros and cons of each solution - using only the Outlook rebasing, using the Exchange tool or both - are also very briefly explained on this page.

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