This area appears to contain a source librarian, from Alex Lunford, Western Area Power Admin. Librarian's comment: Judging by the ammount of documentation it must have something to do with unix. I did find the following: 1. $RUN SLIB77 !if you are going to use it very much you might !want to relink without the debugger or run/nodebug 2. DEBUG> G 3. Is this an interactive EDIT? Y 4. Enter library file name: FSE003.NPL or MOD108.NPL 5. Follow prompts for help.