Strange choice of name given that it doesn't build on Microsoft's CLI at all.
http://www.pllab.riec.tohoku.ac.jp/smlsharp/docs/1.0/en/Ch1....
It predates it, actually.
Which begs the question: you've written "Microsoft's CLI", which does make sense because they were the ones who've come up with it, but can't that be interpreted as a synonym for CLR? Maybe that's what 616c meant.