Yeah, it seems like the guy answering here has no idea what he's talking about. Alex has a blog where he basically says that he'd spend the days writing Windows Internals and the nights reverse engineering the kernel.
It depends on what exactly the variables are referred to. FWIW, Windows DDK's example code has a consistent style as the kernel code (at least for windows 2000/xp). You won't have a thousand ways of naming variables once you get used to that style.
I assume that writing about Windows internals requires knowledge of said internals? Or do you think he never had access to the source code and has never seen anything, not even ideas of algorithms?
Do you believe that is what Microsoft employees do while writing Windows Internals? I have serious trouble believing it. I'm not saying that it's not possible, just that it might not be the case there and these facts seem to confirm it.
I'm not so sure, maybe he was a contractor if that's what you mean (I don't see any real difference). He had a @microsoft.com e-mail address, which is a pretty clear indicator of being on the inside.
