Loading and using models with *.dll (c-code)

Software
1

Windows 10, KiCad 9.04, NGspice 44.
I am making an MCU emulator in c-code compiled into a *.dll file. A simple ADC-MCU-PWM.
I get the error message, "Unimplemented dot command ‘.dll’.
I have come to find that NGspice included with KiCad does not have the ,dll command as well as others.
Specifically, I am trying to get to work:

.dll "./mymodels.dll"
.model myblock cm_module (func="ADC_MCU_PWM")

Is there a way to upgrade KiCad’s NGspice, or point the simulator to a complete stand alone NGspice?
I am aware of d-process and will explore that method.

Or am I way off base?

2

It’s news to me that ngspice has a .dll dot command at all.

There’s a .codemodel command, it expects the lib in a specific directory.