title: vsts-npm-auth is not recognized as the name of a cmdlet
body: <p>First I run <strong>npm install -g vsts-npm-auth</strong> command and I get a message that vsts-npm-auth@0.41.0 installed.
  But then when I'm running vsts-npm-auth -config .npmrc command I get the following error message:</p>
  <hr />
  <p>vsts-npm-auth : The term 'vsts-npm-auth' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included,
  verify that the path is correct and try again.
  At line:1 char:1</p>
  <ul>
  <li>vsts-npm-auth -config .npmrc</li>
  <li>
  <pre><code>  + CategoryInfo          : ObjectNotFound: (vsts-npm-auth:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
  </code></pre>
  </li>
  </ul>