NetVMini sample driver fails to register

[MikeH_1]

When I use devcon to add a netvmini root device as follows:

devcon install netvmini680.inf root\NetVMini680_a

Device manager shows the device with a caution icon overlayed.

When I right click the device and choose properties the device status is:

Windows cannot initialize the device driver for this hardware. (Code 37)

{Operation Failed} The requested operation was unsuccessful.

I have TraceView open and it shows these log statements:

00000037 680 4 3124 3 37 09\11\2020-12:45:23:850
---> DriverEntry built on at
00000038 680 4 3124 3 38 09\11\2020-12:45:23:850
Calling NdisMRegisterMiniportDriver...
00000039 680 4 3124 3 39 09\11\2020-12:45:23:850
NdisMRegisterMiniportDriver failed: -1073676283
00000040 680 4 3124 3 40 09\11\2020-12:45:23:850
---> DriverUnload


Any help appreciated.

Thank you,

Mike

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