[xattt]

> x86 Windows even supports non-PC servers from Compaq

Were there x86 but non-IBM compatible models or did you mean the alternate instruction sets (Alpha, PPC, RISC)?

[zinekeller]

Not GP. I'm not sure if there's a special Compaq version but there's a version (until Windows 2000, https://winworldpc.com/download/5204c39d-c3a9-5a68-11c3-a7c2...) for NEC PC-98 architecture which is x86-based but IBM PC-incompatible, so it's likely that a Compaq version exists.

[yuhong]

The Compaq is IBM PC compatible but uses a different HAL for SMP support. You can see all of them by looking at what NT4 shipped with for example.

[zinekeller]

Ah, Uniprocessor versus Multiprocessor HALs, I remember now!