title: Windows Phone 7 Developer Tools and Existing Visual Studio 2010 Install - How?
body: <p>Microsoft's <a href="http://developer.windowsphone.com/windows-phone-7/" rel="nofollow noreferrer">Windows Phone 7 developer site</a> that contains the following:</p>
  
  <pre><code>* Visual Studio 2010 Express for Windows Phone CTP
  * Windows Phone Emulator CTP
  * Silverlight for Windows Phone CTP
  * XNA Game Studio 4.0 CTP
  </code></pre>
  
  <p>I already have Visual Studio 2010 installed. Will the installer use my existing installation of VS2010 and add to it or will it install an Express edition alongside it? I really wouldn't want the latter.</p>