Anyway it seems I may have an issue with VC or Win 10 as it won't allow me to drag & drop xml files on it, which could be causing my problems??
Windows will sometimes prevent you from dragging files onto a program that has elevated (administrative) privileges. It will depend on which version of Windows you are using and whether or not you have UAC enabled.
Usually there is no reason why you need to run VoxCommando as administrator so I don't recommend doing that without a good reason. Disabling UAC can often help things to run more smoothly but again, it is usually not necessary. It depends what you are trying to do and what you are doing with other programs that VC is trying to talk to.
In general Windows won't allow any program to talk to (and potentiall control) another program that is at a higher privilege level. That's why you can't drag files onto VC when running as administrator because Windows file explorer is running at a lower level than VC and therefore can't talk to it.