Alternatively, there are sites that let you play some DOS games on the Internet, but you’re dependent on their service to play. In the event of an internet outage, or if their service goes offline, ...

4.0 was the second WordStar version to work on DOS, but was a rewrite of 3.0, which had been directly ported to DOS from CP/M. Martin says that to this day it fulfills his every writing need.