It'd rather not use a strange command line utility but it's starting to seem I might be running out of options, at least I will mention this tool:

https://cloudbase.it/qemu-img-windows/

It's website description:

"
qemu-img for Windows

QEMU disk image utility for Windows. It is used for converting, creating and consistency checking of various virtual disk formats. It’s compatible with Hyper-V, KVM, VMware, VirtualBox and Xen virtualization solutions..This build has been optimized for Windows Server (x64), including Windows Nano Server.
"

At least this runs on windows and I can avoid using linux based versions, the horror avoided

It also seems to have some virtual machine as well,

"
What is QEMU?

QEMU is a generic and open source machine emulator and virtualizer.
"

Most of it is for linux but it seems there are also windows versions available.

Maybe I tried this long ago and it ran like a dog, or maybe that was something else, I can remember some kind of tool where you had to build your own PC completely... I hope this is not it cause then I am wasting my time.

But maybe I give this emulator a try too later, to see what it can do and how well/stable and fast it runs

If this converter tool works then I would only need some IMG to DISK tool.

So one step closer hopefully to achieving my goal

Bye,
Skybuck.