On Jan 13, 2013, at 3:25 PM, "Brian Schenkenberger, VAXman-" <system at TMESIS.COM> wrote There were only 3 or 4 modules written in PL/I. Those were rewritten in C. Why not Bliss? Dunno. I'd have to ask Larry or CJ but if Culter had anything to do with it that would explain it. He disdained Bliss (and of course led both C & PL/1 compilers). if you look at NT source while its C/C++ some of us think he tried to morph it into PL/1