Slightly OT: DOS programs in Win XP

A while ago I asked if anyone on the list could help me get AutoCAD 12 for DOS. Several people came through and I now have a copy. Thanks, everyone! As expected though, it doesn't work and play nicely with Windows XP. I was hoping that just running it through a command prompt window and giving that giving the Win 95 compatibility attribute to the acad.exe file would make it work. It didn't and I got a strange error message: "Phar Lap err 74: Can't use -REALBREAK under this version of DPMI" So I Google that and found a few threads like this one: http://discussion.autodesk.com/thread.jspa?threadID=314 Apparently it's just not possible to run Acad 12 in 'real' DOS in XP. I already knew XP's prompt is nothing close to real DOS, but I was hoping to find a way to trick the program, or a way to emulate DOS perhaps. Anyone have a clever solution to this? (I do have a suitable second PC to install real DOS on, but I'd rather not have to dedicate a whole system just to use one program.) ===== Tell your friends about the Computer Collector Newsletter! -- It's free and we'll never send spam or share your email address -- Publishing every Monday(-ish), ask about writing for us -- Mainframes to videogames, hardware and software, we cover it all -- W: http://news.computercollector.com E: news(a)computercollector.com -- 628 readers and counting!