Best way to control Win10 volume?

I have Win10 desktop on 24/7. I do work on it with the music playing. even when the desktop is locked, walking away to get food or something, it is still playing music.
how can I control the master volume using HA?
I tried IOT Link. i see tons of info about my desktop but nothing to control the volume.
I tried MQTT Application too. But this does not seem to work. all i see is Unknown status in HA

i use LMS to store all the music on the rpi3.
since i couldnt find any way to control Winamp, I found out there is a LMS client for windows 10. now i can control both the music and volume! very cool. hope this helps someone else