Application framework X. A crappy Win16 abstraction API that
eventually became a crappy Win32 abstraction API called MFC.
Commonly used by join-the-dots "programmers" who do
everything using MFC Class Wizard.
MFC salutes its AFX heritage with a load of function names
and .h files prefixed with Afx.
a typical AFX/MFC programmer will be heard asking questions
that demonstrate their total and utter ignorance of the Win32 API.