
Many people who have smart speakers such as Amazon Echo or Google Home, find there isn't much they can do to control a windows PC with their voice (at least not yet), and this program can fill that gap. Read more about how it works here.
The program, while not free, is only $2.99, and it opens up a world of automation for your PC.
Below is an example of how you can use Command Listener to run a program on your PC using your Voice and Amazon Alexa: