Absolutely. Microsoft will even preserve behavior that most people would consider bugs, just to keep old software running. I would say backwards compatibility i

Absolutely. Microsoft will even preserve behavior that most people would consider bugs, just to keep old software running. I would say backwards compatibility is a guiding principle of consumer software development at MSFT. Edit: It really says something that the top examples in https://en.wikipedia.org/wiki/Bug_compatibility https://en.wikipedia.org/wiki/Bug_compatibility are from MSFT platforms.