Daylight savings time (DST) dates for 2007 in the United States and Canada will start three weeks earlier (2:00 A.M. on the second Sunday in March), and will end one week later (2:00 A.M. on the first Sunday in November).
Adjusting computers for the new extended DST is a lot tougher and more expensive than you might think.
If your servers are running on Win 2000 you will not be able to find a cumulative time zone update rollup from Microsoft. Why? "Win 2000 is no longer in Mainstream Support Phase." To get past this babble-speak, it means Microsoft does not support Win 2000 anymore unless you have purchased a special $4000 support contract.
Before you jump off the deep end, like I did, there are other options. They are:
Manually update the registry of your Win 2000 computers. See the instructions or use the TZEdit tool. CLICK
Upgrade to Win XP.
Switch to Linux.
I downloaded the TZEDIT tool & it works for XP also.
You can use this tool to verify that your pc is compliant
FREE
Archived topic from Iceteks, old topic ID:4740, old post ID:37532
Did I mention the 700+ servers, only a handful of which have any kind of monitor or keyboard hooked up to them, and I don't Think I've even seen a floppy drive in the data center. No a thumb drive just isn't practical on that scale. Getting the patch on the box really isn't the problem, it's the volume and the fact that you can't just reboot servers haphazardly. You got to get approval first, then notify users of an outage, get the application guys to come in and shut their apps down, and restart the apps and make sure they're working once it's back up. A lot of fuss for what should take only 5-10min, but that's the way things have to go in a business like that.