x64 Win10 DbgPrint driving me nuts

[Git]

I've developed the occasionally driver for many years, but this is the first time I've used Win10 as the development machine.

I can't see any DbgPrint() output

Nothing. I've tried the usual DebugView and also dbgMon. I've made the DEFAULT=0xFFFFFFFF registry fix I saw recommended. Still nothing. It may well be relevant that the Win10 machine is a VMWare guset OS.

Anybody point me at the obvious please?

Git