Any time VB comes up I repeat my same wishlist item. I would love for Microsoft to open source it, in any way, shape or form. I would love for the community to take a crack at adding things to VB6 like bugfixes, any missing features (my understanding is they don't own everything about VB6) and just overall general improvements, imagine VB6 with threading. I know its ancient, but it can still produce a native GUI application effortlessly.
I’d want this if only because I’m stuck maintaining old industrial software written in VB6 (it is omnipresent in manufacturing) and I’d like to have a development experience that is actually somewhat usable.
(No, TwinBasic isn’t adequate. No, a VB.NET migration isn’t feasible.)