That's because you are lucky, not because it's designed to be that way. Windows has very variable support timeline for its releases, and, going forward, Micros

That's because you are lucky, not because it's designed to be that way. Windows has very variable support timeline for its releases, and, going forward, Microsoft only looking to cut down on support times, not increase them. So, even if it worked for you during NT era, it's not going to work for people writing for Windows 10 or whatever the present day version is. Not to mention that Windows is just not a player in many major computer markets, so not even an option for someone who eg. wants to provide storage solutions or HPC and many others.