Windows 2000 on libvirt
For the retro part of my home network, I have Windows 2000 Server running Active Directory, DNS, and DHCP servers on the retro VLAN. I was running this on Proxmox, but wanted to move this over to my Debian server running libvirt.
Rather than try to migrate the actual virtual machine, I installed a new instance of Windows 2000 Server under libvirt and added it as a Domain Controller.
libvirt has support for legacy operating systems, but its default configurations are not optimal and will cause difficulties.