c/c++ programmers usually do not require files in addition to the list of exported methods (core methods in file ppp.h, graphical interface in pppx.h) and the description included in the documentation.
Prode Properties for Windows has been compiled with Microsoft Visual Studio and it is compatible with all Microsoft Windows applications. 
Please note that you must include in your project the correct version (32 or 64 bits) of ppp.lib , pppx.lib file