These are drivers and software for using the DOS Compatibility card installed in some Power Macintosh 6100 machines. It has a genuine Intel 486 DX/2 66, Creative Vibra16 with real OPL3 and a really awful CHIPS 82C450 VGA chip. Performance is good enough to play Doom in DOS and Windows 3.1 works just fine though screen refreshes can be slow.
I had a hell of a time finding the VGA drivers for Windows 3.1. Thanks to a friend for their hard work I have them now and so do you.
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Chips & Technologies 82C450 Windows 3.0/3.1 Driver
Supports up to 800x600 16-colors or 640x480 256-colors
Link
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Creative Vibra16 Driver
Link
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pcSetup 2
Macintosh side software for using the DOS Compatibility card.
Drivers for NETWORK, PRINT, and CDROM are on the PC_Compatibility disks included at the same link.
Link