Re: It wasn't just apps
> Charles Petzold, the author of what was the "Bible" ... examples from the Windows 1 SDK that can still be built and run on the most modern versions of Windows
While it may well be true that _some_ of the examples could be recompiled on whatever was the 'most modern' at the time he said that, it is also true that programs compiled for Windows 1 or 2 would not run under Windows 95 or later.
> I don't think there is no any UI toolkit still in widespread use that could boast this.
X-Windows comes to mind as one that probably could do this, and that was before MS Windows 1. Also it wouldn't surprise me to find that some early Macintosh, also before Windows 1, example code could still be compiled and run.
But, does anyone still program down to the raw SDK level ? I would have thought that most programming is done on much higher level frameworks.