Smiley said:
(which very helpfully MS have copied most of them in recent versions of windows, no more alt+F4 to close a window for example but cmd/ctrl+w)
alt-f4 desn't close a window, it closes an app. these days there's basically no difference between the two, but in days gone by, that was a difference between the two different key combos. ctrl-f4 was the same as ctrl-w.
and both of those haven't been copied recently at all, they've been in every version of windows i've ever used, as far back as 3.0, but fairly sure 2.1 had them too.