In going through some ~18 year old moving boxes, I found a copy of an old Estes analysis program, Copyright 1990 called "PC Astrocad". It is on a 5.25" floppy. Does anyone have a working DOS/Windows computer that can still read a 5.25" floppy? Would like to take a look at what is there for historical purposes ( as apposed to hysterical porpoises). Thanks!