Hello Bill,
Thank you for visiting Microsoft Community.
The Virtual CD-ROM Control Panel only supports 32-bit versions of Windows. The older Windows driver it uses isn’t compatible with a 64-bit OS.
You may refer the following Microsoft article below for further information on this.
Utility Spotlight: Install apps from ISO files
https://technet.microsoft.com/en-us/magazine/dn261711.aspx
Hope this information is helpful. Feel free to write us back for any further assistance with Windows, we'll be glad to assist you.