For the benefit of others with a similar question.

- Windows 10 installed the Axiom 49 driver for my old M-Audio Axiom 49 Controller.
- The driver on the CD that came with the Axiom 49 wouldn't install.
- So I just connected the Axiom 49's usb cable to the PC and Windows installed the driver.
- Now if I click Control Panel > Device Manager > Sound, Video, & Game Controllers
I see the USB Axiom 49.

Now I have other issues but they probably merit a new thread so look for that.

And, thanks to everyone for the help in getting me going on this.