U.S. Robotics 56K Voice PCI
3CP-2976-50 driver for dos/win95/98
3CMDM.EXE, is the DOS driver.
Place it in the autoexec.bat file.
Make sure it is a straight DOS startup.
It will not work from a DOS window or exiting to DOS from Windows.
I suggest using a DOS boot disk.
Please remember this falls under the "unsupported driver" category of 3Com drivers.
It will work with either 2976 or 2977 only.