Singularity and Parallels
Well, I got Singularity ( MS’s new mostly managed OS ) built. But now the ISO doesn’t want to boot in Parallels. Of course, no one said that it would. I was just hoping. Parallels throws a hissy fit and wants to report the failure back home. Hrmmm *keeps tinkering* Wonder what’s up.

Don’t know too much about Singularity, not sure if it’s on Parallels supported applications.
Singularity is Microsoft’s prototypical managed OS. Yeah, It’s an entire operating system. I’m not too entirely surprised that it didn’t work. Certainly I wouldn’t expect it to be officially supported.
I found the same issue. Did you ever get it working?
No, never bothered to try again. It was one of those spur of the moment ADD things.