They were syndicated from Futuresoft - I will look them through and remove those from OS X and Windows.
None of the icons were specifically from Win 7 since Futuresoft was released many years ago.
Strange - looking at a lot of the icons, like the ones following, they certainly must have been designed to resemble Windows icons, but I can't find the exact icons they're modeled after. I'm really not sure where these would stand, as far as copyright goes - a number of them have enough resemblance to real Windows icons (or other trademarks) that you'd probably get legal grief for trying to use them in your own product, for instance.
