If you look up the Wikipedia page for WordStar and try to trace who owns the assets now, you find a tall stack of software companies that were acquired by others and eventually it seems to loop.

* WordStar was created by MicroPro International

* They were acquired by SoftKey

* They acquired The Learning Company and took that name

* Then they were acquired by Mattel

* ...which sold the assets to Gores Technology Group

* ...which split into GAME Studios, yet another "The Learning Company", and Broderbund

* ...which was acquired by SoftKey?

Or maybe it was part of one of those Learning Companies that sold its assets to Riverdeep Interactive Learning Limited? I think they're now Houghton Mifflin Harcourt Learning Technology.