title: Windows -installed node.js but npm not found
body: <p>I thought npm is automatically installed with the latest node.js installer on Windows. However when I try and use npm in the command console  I get the following error</p>
  
  <pre><code>C:npm install socketio
  
  module.js:340
      throw err;
            ^
  Error: Cannot find module 'C:\Users\foo\node_modules\npm\bin\n
  pm-cli.js'
      at Function.Module._resolveFilename (module.js:338:15)
      at Function.Module._load (module.js:280:25)
      at Function.Module.runMain (module.js:497:10)
      at startup (node.js:119:16)
      at node.js:906:3
  </code></pre>
  
  <p>I checked and npm DOES exist in the nodejs Program Files directory. So is this a PATH environment issue? And if so, how do I resolve so I can use npm anywhere I open a command console window?</p>