I'm sorry you're confused. You made that claim, I'm saying it's incorrect.
You've said you could; you've said you couldn't. Naturally you've contradicted yourself at multiple points in this thread. The point at issue in Post #557, which you still haven't honestly addressed, is your claim that you can bitflip multiple paths between DOS and Windows XP.
Of course, the only way that you could do that would be if you had a Key and an appropriate Algorithm.
And I say that you have neither, and therefor can not get from DOS to Windows XP via bitflips.
NEWSFLASH: Windows XP did not evolve from DOS. Rather, Windows XP was designed, with some DOS programming being re-used in the creation of Windows XP. That's intelligent intervention, not natural, unguided evolution, by the way...