I want to know the answer to the following question:
If located in Canada somewhere where DST is observed, a system running Vista might mishandle time stamps that are older than what year?
All the background I'm provided with is that "In a Canadian location observing DST, a single Vista setting supports both 1987–2006 and post-2006 time stamps, but mishandles some older time stamps.". Is that enough to answer the question?