In my time as a software engineering student I got to mess around with Linux enough times so as to feel like I know something about the way it works, but knowing only one OS seems short sighted to me. I'd love to learn about the way Windows does things, and though I don't expect to get to look at its code, I'm sure there are some articles/academic-papers/tech-manuals that have at least some information.
Do you know of a good source from which I can learn about the Windows kernel?