OK, Downloaded the GIThub application for windows 7 and got the correct files! No more illegal embedded characters!
Sorry this is all new to me so if someone could point me in the right direction it would be greatly appreciated.
When I compile ulisp using the Arduino IDE 1.8.6 I get the following errors.
Arduino: 1.8.6 (Windows 7), Board: "Arduino/Genuino Uno" C:\Users\TheMan\Documents\Arduino\ulisp\ulisp.ino: In function 'object* myalloc()': ulisp:187:44: error: 'error' was not declared in this scope if (Freespace == 0) error(PSTR("No room"));