File list (Check if you may need any files):
sdk4dos
.......\compile.bat
.......\gui.h
.......\hello.c
.......\HELLO.EXE
.......\HELLO.OBJ
.......\HZK16
.......\include
.......\.......\check.h
.......\.......\choice.h
.......\.......\class.h
.......\.......\combobox.h
.......\.......\common.h
.......\.......\ctrl.h
.......\.......\dlg.h
.......\.......\editbox.h
.......\.......\efapi.h
.......\.......\gdi.h
.......\.......\image.h
.......\.......\label.h
.......\.......\menu.h
.......\.......\message.h
.......\.......\object.h
.......\.......\osdef.h
.......\.......\popmenu.h
.......\.......\scroll.h
.......\.......\selbox.h
.......\.......\speed.h
.......\.......\textbox.h
.......\.......\timecall.h
.......\Install.txt
.......\lib
.......\...\gui.lib
.......\Lisence.txt
.......\Readme.txt