Are you still dealing with Daylight Savings Time issues? Microsoft yesterday released more information via their website.
According to information released, the DST patch is not marked as a critical update. Since the US government has changed DST, and all of our computers need to be DST compliant, it would seem to me that it is indeed a critical update. The only reason I can see for Microsoft not marking this as critical is to exclude the many, many Windows 2000 Professional and Server systems that are still in use around the world.
Here is a link to a document that states which systems and applications there are patches for.
Also, I've cached a local copy of Microsoft's page that includes links to all of the patches that are available, here.
I hope this helps.
