Except it's really the OS doing cartwheels to keep them going.
My point is about this sort of thing:
> [...] anybody who has read the Old New Thing blog (https://blogs.msdn.microsoft.com/oldnewthing/) or Raymond Chen's chapter on Windows backwards compatibility (http://ptgmedia.pearsoncmg.com/images/9780321440303/samplech..., PDF) will be both impressed and horrified at the lengths the Windows team went to in order to avoid breaking programs.