I've done it. You have to use a Quicktime file in .m4v format. I have several full length movies on my website in that format and they load perfectly. Don't use .mov format. The files have a 10 Mb limit.
But you can get Quicktime Pro for PC (downloadable from Apple). At $29, it's a good investment for anybody with an iPhone or iPod (especially if you have avi files, which won't play on iPhone). If you need a program to rip DVD's, then I don't know what PC users do.