If you really wanted all of the Windows functions, structures, and enumerations, you could create a VB .bas file, and insert the text from the Win32API.txt file that is included with the WinAPI text viewer.... Then again, that file is ~650 kb, and it would bloat your app like a mo fo =).
That's not really what I meant though.

I also like the fact that there are no runtimes. I used VB for a week or so, and thats when i found this website. Now i mainly use C++.
What's the definition of a run-time? What's interesting is if you look at drivers in dependency walker. It makes it look like Win32 is a run-time, or at least an abstraction layer over the OS kernel.