Microsoft is saying that customers should wait and deploy the Outlook
Data Update tool and the OS DST 2007 patches at the same time. As fara
as unsupported OSes go (such as Windows 2000), there is a tool
available at www.sharpebusinesssolutions.com/dst2007.htm that can
handle the DST 2007 changes for all major versions of client and
server-side Windows operating systems.