File list (Check if you may need any files):
Viewer
......\Data #1.doc
......\HELPEX.HLP
......\readme.txt
......\Source
......\......\Accel.c
......\......\Accel.h
......\......\Back.c
......\......\Back.h
......\......\Btnbar.c
......\......\Btnbar.h
......\......\Copy.c
......\......\Copy.h
......\......\Debug
......\......\.....\Empty.txt
......\......\Dialogs.c
......\......\Dialogs.h
......\......\Display.c
......\......\Display.h
......\......\DLL
......\......\...\Debug
......\......\...\.....\Empty.txt
......\......\...\Release
......\......\...\.......\Empty.txt
......\......\Elements.c
......\......\Elements.h
......\......\Filebuff.c
......\......\Filebuff.h
......\......\Files.c
......\......\Files.h
......\......\Fontbuff.c
......\......\Fontbuff.h
......\......\General.h
......\......\Globals.c
......\......\Globals.h
......\......\Help
......\......\....\LOGO16B.BMP
......\......\....\MAKEHELP.BAT
......\......\....\SEARCH.BMP
......\......\....\TWINHELP.HLP
......\......\....\TWINHELP.HPJ
......\......\....\TWINHELP.PH
......\......\....\TWINHELP.RTF
......\......\....\UNDER.BMP
......\......\....\UNDER.GIF
......\......\Helpapi.h
......\......\History.c
......\......\History.h
......\......\Hlpfile.c
......\......\Hlpfile.h
......\......\Hlpmacro.c
......\......\Hlpmacro.h
......\......\Hotspots.c
......\......\Hotspots.h
......\......\Inifile.c
......\......\Inifile.h
......\......\launcher.c
......\......\Launcher.rc
......\......\Libmain.c
......\......\Macroeng.c
......\......\Macroeng.h
......\......\MAGGLASS.CUR
......\......\Menu.c
......\......\Menu.h
......\......\Msgbox.c
......\......\Msgbox.h
......\......\Openfile.c
......\......\Openfile.h
......\......\Portable.c
......\......\Portable.h
......\......\Print.c
......\......\Print.h
......\......\Search.c
......\......\Search.h
......\......\Secwnd.c
......\......\Secwnd.h
......\......\twhlprc.h
......\......\Twinhelp.aps
......\......\Twinhelp.c
......\......\Twinhelp.def
......\......\Twinhelp.h
......\......\twinhelp.ilk
......\......\twinhelp.mak
......\......\twinhelp.mdp
......\......\twinhelp.ncb
......\......\Twinhelp.rc
......\......\Winmem.c
......\......\Winmem.h
......\......\WMAGLASS.CUR
......\......\Wnddata.c
......\......\Wnddata.h
......\......\Wndlist.c
......\......\Wndlist.h
......\......\Wndpos.c