I am having the same issue. I would like to run Terminal Server Edition under proxmox but TSE always wants to use multiprocessor mode which pegs the physical CPU at 100 percent.

I tried doing a fresh install of Server 4.0 SP6a which does not have the issue and copy over hal.dll and ntoskrnl.exe but that just caused a boot crash. I’d be fine to have TSE run in single processor mode but I can’t see any way to force it.

Did you ever work this out?

it’s been a while since I’ve tried, I know it’s SUPER pissy about it.

I think I’d maybe try vmware and convert the vmdk. although vmware itself can be.. weird.

It seems that giving it a multi-core setup causes it to pin all CPU’s allocated at 100% regardless of workload within the guest.

I tried various “CPU idle” apps but none of them seemed to work under NT 4

Welcome to the 1%!

Part of the bigger struggle is the install. With Proxmox although it uses Qemu/KVM it hides all the great flags, and options. I recall having to install from Qemu so I can fine tune and control it, then just import the settings & disk image.

It’s been a long whlie though.

yep, hyper v is a choice. But i was considering if proxmox can run with windows nt4, and i searched some posts it running on QEMU very well, last week i was installed Rasp Pi with Pimox7(it seem support qemu). So what i want to do is, if Pimox7 can install nt4, then it mean can be use very tiny resource to run some win32 programe with native windowsNT and on raspberry pi.
Anyway, thanks for your reply and i’ll keep update together, if can find solution later then i’ll come back leave u message. ^.~ hv a nice day man.

A couple of years later after I’d written that, a VMware sales person did a follow up, and I’d told them that we stopped using VMware because of their insane licensing and how we missed the renewal from someone leaving the company. They ended up striking a deal with management that we’d get to buy back in at the renewal rate if we went back. And then we were bought out, and I was laid off. Not sure what happened after that.

These days I run NT 4.0 on Hyper-V as I don’t have a proper dedicated server, but my workstation running Windows 10 made it something I could setup with a dedicated disk and network port, and just run in the background. Since NT 4.0 is so low resource it has effectively zero impact on my life.