I've just wasted 5 hours fooling around with the current stable releases of ReactOS on qemu on OpenBSD.
ReactOS feels much like a alpha release of Windows 95.
It'll probably take 5 more years to be as good as Wine and a whole decade to implement Windows XP level functionality.
The API compatibility really sucks:
- ipconfig /renew is missing
- MapFactor Navigator Free didn't install. It did two DNS queries and then returned an unknown networking error when it was supposed to do a http(s) connect.
- Garmin Mobile PC could be installed, but the GUI was very sluggish. I could do 1 click every 30 or so seconds. (some weird event handling, i assume). Missing API errors occured when trying to talk to COM1-(qemu)-ttyp1-(ldattach)-cua01-(openbsd)..
TLDR: Linux/Unix + Wine seems to be way better at running Windows stuff than ReactOS - even tough ReactOS borrowed some code from Wine.
@Jeff: ReactOS booted with qemu-system-i386 and qemu-system-x86_64, if that answers your question.
EDIT: 06:33
Three Dead Trolls in a Baggie - Every OS Sucks