Public Domain Aeronautical Software (PDAS)  

The archive file quiz.zip contains the files:

readme.txt this file - general description
quizzer.dpr The Delphi Project File
quizzer.exe The executable program for Microsoft Windows
quizunit.dfm The form definition
quizunit.pas The source code associated with quizunit.dfm

Public Domain Aeronautical Software (PDAS)