title: TFS Power tools installation error: no Side-by-side
body: <p>I have visual studio 2012 installed on my box and I am trying to install TFS 2012 power tools. </p>
  
  <p>This is the error I am getting via <code>getwindowText</code>:</p>
  
  <pre><code>The Windows Shell Extension component cannot be installed side-by-side 
  with previous versions. In order to continue, you must deselect that 
  feature, or cancel this installation, uninstall the previous Windows 
  Shell Extension, and restart this installation.
  </code></pre>
  
  <p>The questions I have are:</p>
  
  <ol>
  <li>Do I really need to uninstall the existing windows shell extension
  or is it just some issue with version compatibility?</li>
  <li>How do I go about un-installing the previous windows Shell
  extension?</li>
  <li>How do I check the version of team explorer installed on my box?</li>
  </ol>