Win NT 3.51 was the first version I used. It looked like the old Win 3.1 at the time, and using PROGMAN.EXE instead of the windows Explorer (NT4 was the one ge

Win NT 3.51 was the first version I used. It looked like the old Win 3.1 at the time, and using PROGMAN.EXE instead of the windows Explorer (NT4 was the one getting the Win95 look, IIRC). In version 3.51, the video subsystem ran in usermode, and not in kernel mode. That happened in NT4 I think.