title: "devenv" command is not recognized
body: <p>I have downloaded and installed Visual Studio 2013 Express (from <a href="https://www.visualstudio.com/downloads/download-visual-studio-vs#d-express-windows-desktop" rel="nofollow noreferrer">here</a>)
  When i try to run the command devenv I get an error - 
  <img src="https://i.stack.imgur.com/cjGgN.jpg" alt="enter image description here"></p>