Hello Mike,
I've tested successfully your last setup package on Windows 8.1 and 10 x64 machines. The only error I got was on a Win 7 x64 machine and was due to your driver files having a digital signature created with a SHA-256 certificate.
If you try to install your driver on a Win 7 machine you will get the
"Windows cannot verify the digital signature for this file" error and the driver service start operation will be denied.
To make sure your driver can be successfully installed and started on Windows 7 machines too, please make sure the
"Microsoft Security Advisory 3033929" update is installed on your target Win 7 machines. You can download this update from
Microsoft website.
Let me know if this helped you.
All the best,
Daniel