I'm 51. We PC nerds played with IPC via DDE and even Net DDE in the early 90's Netware days before TCP/IP and HTTP took over with XML or JSON in tow. A script connected "Emacs Lisp" for office automation is still a good idea for professionals. The programmable spreadsheet changed the world in the 1980's like few today could ever imagine. They gave out Office to everyone en masse after that. But Hack attacks via email are not always front and center considerations. IPC interoperability is important for folks actually customizing workstation workflows.