title: How to Know if an specific windows service is installed with Node js?
body: <p>I'm new in Node JS.</p>
  
  <p>I'm building an new desktop app with web-kit.</p>
  
  <p>One of my requirements is verify if an determinate service is installed on Windows. How can I do that on Node js?</p>
  
  <p>I know how to find the application at the process list with Node Js. But what I really need is whether it is installed, because it can be stopped, but installed.</p>