PC: Next Steps after Setting Up AirSonos for room [IP]

[jtrzcin]

On my mac, I succeeded to set up AirSonos and I see an extra speaker device (AirSonos) in Sound. I can activate the speaker and the sounds of my mac goes on the sonos. superb.

However, on my pc (Windows 7), I don't see any extra devices for the sound speaker. no sounds from my pc go to the sonos. The last step in the command seems correct:
"Setting Up AirSonos for room#1 [IP]"
"Setting Up AirSonos for room#2 [IP]"

What comes next ? Is it a configuration issue? Should I use another software?
Thanks

[stephen]

I don't think Windows 7 supports AirPlay directly. See: https://support.apple.com/en-us/HT204289