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Sorry, but unless you link some documentary evidence for that I'm going to say that you are flat-out wrong.
Sleep( 0 ) has always relinquished the current timeslice of the thread on which it is called, from NT 3.5 upto and including Vista....
I do not have hands on knowledge of W/7/8, but I can find no evidence to support your premise there either.
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.