Ed,
I think there's still an option to by a Single Issue of MSDN for something less than the annual subscription. Which is ok since the basic Win32API stuff is static.
>It's in the MSDN that comes with Visual Studio Enterprise, as well as being available by subscription from Microsoft (depending on exactly what you want, you're looking at between $300-2000/year. The $300/year is the basic MSDN subscription, with quarterly updates to the documentation, white papers, and Platform SDK. At the high end, the Universal Subscription @$1995 list is all the operating systems, all the languages, all the DDKs and SDKs, all of Office, all of Back Office, with monthly updates, as well as most major betas, and some support calls to tech support. This includes international flavors if you want them.)