NT has its object manager.. the problem with it is visibility. Yes, object manager type functionality was bolted-on to UNIX, but at least it's all visible in the filesystem. In NT, you need a special utility WinObj to browse it.
Maybe if you can run that explorer under NT systems you could explore them under the original NT OSes too.
Edit: https://winclassic.net/thread/1852/reactos-registry-ntobject...