The key to this set of files is the Win32ASM.doc file in the DOC directory.
Please look at the ReadMe.txt files in the Doc, Win32DLL and Win32Proto folders.
Building applications using the techniques indicated in this set of files requires access to Microsoft's Win32SDK documentation and Microsoft's Win32 import library (.LIB) files. Both are available as part of Microsoft's Microsoft Developer's Network (MSDN). Both are also distributed with various compiler sets.
Since this documentation and associated files are declared as Public Domain, you are allowed to distribute it without any restrictions on any storage or communications media, as long as you use the distribution self-extracting file without any modification, using the same file name (Win32ASM) as the original file.