When i was kid, i was played this game quite a lots!
(But sadly i stuck at chapter 5or 6 i guess thats a bug, and im not good at save game lol)
Overfew years, i remember this game and find this forum! Seems dead but ill giving a try.
As you know(or not) steam or gog is a good game platform as old game too.
Why dont u repair(mean support window7 8 10 or something) major problom and publish game again with charge?