Pro Tools audio from Windows client to MacOS host

[DaveHeffner]

I successfully run Zoom sessions with Pro Tools MacOS to MacOS seeing and hearing each others computer utilizing each others audio interface and the ZoomAudioDevice driver in Pro Tools. I (as host) can also display and play my Pro Tools MacOS to a Pro Tools Windows user. What I can't get to work is me as Zoom host with Pro Tools MacOS and the client trying to play their Pro Tools Windows sound. The screen share does work but no audio. What am I missing or is it not possible? I make sure the Audio settings are the interface for each user and Share audio is selected.