here is his directions on the subject ---snip--- open a command prompt to that folder and do this on the command line: perl morphtarget.pl grpPitFiend.obj reposed.obj > PitFiendRepose.obj You now have a new object called PitFiendRepose.obj. ---snip--- I have tried to open up my command prompt in the same folder and typed in what he said, but I get the reply "perl is not recognized as an internal or external command". I have asked him twice by email and he keeps sending me the same instuctions. He acts like I already should know what I am doing. I have asked a few friends and they don't know. I have done a search on a search engine and I keep getting all sorts of information, much much more than I need - when all I want to do is run one!!! You know I must be getting very fustrated to post this question here,..hehehehe. All I want to do is run a .pl file. marty