@duiz I would suspect the latest build of the main branch would support it. If not, I believe @jdrassa had some Windows builds he was sharing - I'd search for EmulationStation Windows builds in the forums.
My latest code would be here:
https://github.com/pjft/EmulationStation/tree/ES-OMX-Master-Merged-Stable
If anyone wants to compile it, though the only new things it has is screensaver support and filtering. The OMX Player changes are not relevant to Windows. In fact, I can't promise it'll compile for Windows as I never attempted it, though I tried to keep things tidy so that it would.