Providing you still have the licence number you could try contacting Profantasy?
This is their contact page.
And this is the Profantasy Forum.
I've read threads over there by people with older versions, but I've never seen one as old as that (20 years old), so I can't really say what the reaction might be, apart from surprise and curiosity! LOL!
The current versions are: CC3+ and DD3. I think the software went through CC2 and CC3 between what you've got there, and what there is now.
Hope that helps