I found this ad from Personal Computer World (UK) in 1985. I think we all like their moto! Has anyone heard of this company? They don’t seem to be still around from an internet search I did. But people who worked there may have had an interesting career (hopefully!)
Yes unfortunately they do.
In the 90’s I wrote some Visual Basic applications, the only source code they had was isolated snippets to describe the buttons actions.
But most of the app was not based in source code but directly on a binary formal that VB could understand.