Boot Windows 7 from VHD ?

[mat-industries]

It may not be what you're after but booting Windows 7 from a VHD is easy -- and without using Ventoy or anything else...

For instructions, see this: https://johnpapa.net/bootoffmetal/

Installing Windows 7 into a VHD is easy, just like in the tutorial as linked by you.
But I want to boot the created VHD via Ventoy, and this is exactly my problem.
For this I would need a solution.