Nope, they talk about the differences between the CMS subset implementation and the MVS/TSO versions too. I looked at the code this morning -- admittedly befo re having any coffee -- and they had a fair amount of discussion about the vari ous implementations. I could be wrong -- my brain doesn't work well in a pre-co ffee state; something everyone can relate to...8-). I'll still go ahead and summarize though. The CMS implementation is the most li mited (so I'm told), so it should be the easiest to implement on another machin e, right? Holding out until the powers that be see the light of HPO, Dave Boyes University of Oregon Computing Center.