HASS.agent - Open Program Remotely on Windows

I got MQTT up and running on my HA server.
I have HASS.agent installed on my other server that I am trying to automate.
HASS.agent sends two sensor data to my HA server.

How do I get HA to open a program on the machine running HASS.agent?

I would start be reading this.
Introduction - HASS.Agent.
Then continue reading. I think somewhere in ‘commands’ is where your answer will be.
I don’t use windows, but that is what I would do.