Hi Patrick,
I, myself, am not a huge fan of libraries though when using QB45, I used them all the time.
QB64 has a slightly changed structure for using .BI files now with .BM though I've heard they can have any extension now. Also, the whole DECLARE's section isn't needed for QB64 code, I don't think. So a little demo in QB64 would be pragmatic to show the old code still works.
Are you QB fan? have you tried QB64?
It is nice gesture to honor your Uncle and what I suppose is one of his great loves.
Welcome to the forum!