In the 1980s some Xerox Lisp Machines came with an IBM PC/XT expansion card that allowed running MS-DOS software from the Interlisp-D environment, like the black window of a spreadsheet program at the bottom left. This screenshot is from a flyer of the Xerox 1186 AI workstation.
https://groups.google.com/g/lispcore/c/aCC34TmRSmc/m/KQwufgfABQAJ