The idea behind SaaS is to "rent out software or service"; I was more thinking about having the administrational side of the AD available as a service, but not directly in the SaaS way. Come to think of it, there's an open-source Linux application called "Samba" which is used to integrate Linux-pc's in a Windows-network. That would take a "bunch" of programmers, I'm afraid, since it would be a lot of work.
Bastard Programmer from Hell :suss: if you can't read my code, try converting it here[^]