where to get headers like winuserp.h?

[jonwil]

I see lots of references throughout the leaked MS code to header files like winuderp.h and stuff (from what I can tell, there seems to be one set for documenting all the NTDLL.DLL stuff and another set that documents the stuff in the userland dlls that they dont want ppl outside of MS calling/using.

But where do I get this stuff from?