Charlie Beat me to it
I use a StrongARM Risc PC running Dos6/Win311 & Win98SE.
I also use DosBox on my VISTA PC it's compatibility is great but timing adjustment for each game is a bitch.
OS/2 Warp does not have great MSDOS game compatibility as DOS system calls are not implemented inline with MSDOS.
However it is a great OS & at the time pi**ed all over Win3.1, I boot it occaisionally under Virtual PC.
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