This is the restore CD that comes with a Macintosh Performa 640CD DOS Compatible computer including System 7.5.1 and the tools and drivers for the PC side.

Farallon Comm Slot 1 ethernet drivers for Mac OS 7.5.5 - 9.2.2 - Other versions of the Farallon drivers can be found at https://proxim.my.site.com/s/article/297

Excellent service information for the Macintosh Performa 640CD DOS Compatible including troubleshooting and full tear down illustrations and exploded views.

This is a large text file with tons of information about the DOS compatibility card (Houdini) Apple released in 1994.  Here is the opening quote of the file:

After many revisions, v1.01 of the Houdini FAQ will be the last one for
awhile. Houdini is the nickname for Apple's Macintosh DOS Compatibility
Card. The FAQ contains much useful information and tidbits. Enjoy!

• Anton Prastowo

Original Source - https://websites.umich.edu/~archive/mac/misc/documentation/houdinifaq1.01.txt

This is a nice pictorial guide on the lineage of the DOS compatibility cards for the Macinstosh computer.

Original Source - 68kMLA Forum Post

This copy of Apple's DOS Compatibility Software version 1.0.6f2 has been known to work on Mac OS 7.6.1 and may work on other versions (untested).

Tested with the Quadra 610 DOS Compatible (Houdini), the Power Macintosh 6100 with DOS Compatibility card, and the Performa 640 DOS Compatible 486 on Mac OS 7.6.1.

In the archive is the Apple installer files, a folder for a pre-setup PC Drive image with MS-DOS 6.2.2 already setup on it, and Disk Image copies of MS-DOS 6.2.2 and Windows 3.1 setup disks.

Original Source - Macintosh Garden