Not targetting versions beyond XP is what ReactOS does, and pretty much always has to my knowledge. It's explicitly mentioned in its doco that it targets Windo

Not targetting versions beyond XP is what ReactOS does, and pretty much always has to my knowledge. It's explicitly mentioned in its doco that it targets Windows NT 5.2. Indeed, this is the first thing dealt with in the ReactOS FAQ on its wiki. * https://reactos.org/wiki/ReactOS_FAQ https://reactos.org/wiki/ReactOS_FAQ I found this disappointing at the time that ReactOS was announced, as I recall, because there were a few things that were architected better in Windows NT 6.