> Win386 ran individual "V8086" processes -- which was a key feature of the Intel 386 processor running in Protected Mode -- in a completely preemptive multitasking way.
What about Win286/running Windows 3.1 on an 80286?
On a 286, Windows 3.1 ran in 'standard' mode, so it had only cooperative multitasking. Preemptive multitasking was confined to 386 or higher, on which Windows 3.1 ran in 'enhanced mode'.