Anyway, found this site and looks like a very good overview for the long and confusing history of Harpoon.
Perhaps useful for someone in CMO forum. CMANO/CMO still creating its own history, is included at the end of the article.
https://retroviator.com/harpoon/
Those were times
If the player had an early version 1.0, they could call Three-Sixty Pacific, and a free upgrade would arrive in the mail.
Anyone called and is still present here?