In 1987 he gave the first of his "snake oil speeches". Some people thought he was talking about the "Unix Conspiracy". Olsen believed VMS was a better operating system for DEC customers than UNIX. He said why VMS was good. Yet, he did approve and encourage a plan inside DEC to make a UNIX for VAX computers based on BSD. This version of UNIX was called Ultrix. However, Ultrix never got good support from within DEC.