From Ultimarc site
Displays all boot, DOS and Windows screens. Displays Windows desktop in a choice of resolutions including interlaced and non-interlaced.
Allows DOS MAME or MAME32 to run almost all games at their native resolutions without hardware stretching, scan converters or other degradation.
All special modes available in Windows XP, Windows 2000 and Windows 98 at all colour depths.
Desktop rotation supported in Windows for vertically-mounted monitors in Windows XP and 2000.
Choice of Windows desktop resolutions including interlaced and non-interlaced modes. Can be assigned hot-keys .
Virtual-desktop mode supported in XP and 2000, so you can run a desktop of 1024 X 768 and auto-pan.
===> Windows will work with the ArcadeVGA card