This UIC contains a multi level directory pip called pir. To build; Move thes file to a new directory in [50,14]. Be sure the sources for FCS are in [50,10]. Execute @slipper Executre @pir Try pir. It is in [3,54] so it can be run via $pir. The only changes to pip are the directory find routines. I have not had time to correct pip for the overwrite of the default directory. The directorys pir may use is [hhh.hhh.hhh], [.ggg.ggg], [-], [.], [-.gggg], [-jjj], and several other combinations. Any questions? Dan L. Eisner Perkin-Elmer Corporation 7421 Orangewood Avenue Garden Grove, California