“Frontier, When the Chefs were Still Baking”

Searching on Google for some information on threading in Frontier (specifically, what does and does not trigger a context switch between script threads), I came across this beautiful gem written by Doug Baron in 1997. That letter will probably put a big smile on the faces of most Frontier scripters/programmers, especially those who have been around for a few years.

It didn't answer my question, of course, but there's no way Google could have known that.

I don't actually think I'm going to find the answer to this particular question on the web, but I haven't given up yet.