I believe WMP 11 can play some .mov files, not so sure though, and even if it can, a plug in needs to be added, or a codec pack.
(Never tried messing around with any of that.)
The Windows installation usually comes with Apple's Quicktime player, which can play these, but I find it's a right royal PITA, demanding connection, supplying info/update and advertising pages, literally hijacking the browser.
Google around (or look through the free programs sticky) for a good alternative.