Thing is Komplete Kontrol does kind of work in VEP. I can get multiple instances of VEP with Komplete Kontrol inside to work.
The main problem is that Track Focus gets broken.
When you host Komplete Kontrol directly inside a DAW, changing tracks in the DAW updates the Komplete Kontrol controller keyboard with the Light Guide and Controls changing to the next focused instrument.
Granted its only a few DAWs that have this feature mainly Logic, Cubase and Digital Performer I think.
However you can only use Komplete Kontrol on the local VEP server not on any slave machines as the hardware must be connected directly to the same machine as the software is hosted.
I did try to load VEP server as a plugin inside Komplete Kontrol in the DAW and load Kontakt instruments inside the VEP Instance. It connects up but does not pass any Controls or Lightguide.