I downloaded Dudes of Stuff and Things and, uh, it's really good. I'm running it in WINE, because I use Linux. I couldn't help but notice that there's a bunch of Turbo Pascal (or maybe Delphi? It's been a while) code in dosdudes.zip. Other than using Windows to render, are there any meaningful differences between the DOS version and the Windows one? More importantly, would you be willing to let someone try and port the game to something more modern? Not that I personally necessarily have much time to do so, but I'm sure you know that HoMM3 still has a pretty big fan-base on the Internet.
(Edit: Could be Delphi, I'm not sure.)