title: FlavorProperties GUID in csproj File
body: <p>So I was looking at an open source's csproj file and noticed this:</p>
  
  <pre><code>&lt;ProjectExtensions&gt;
     &lt;VisualStudio&gt;
         &lt;FlavorProperties GUID="{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}"&gt;
           &lt;HostingProcess disable="1" /&gt;
         &lt;/FlavorProperties&gt;
     &lt;/VisualStudio&gt;
  &lt;ProjectExtensions&gt;
  </code></pre>
  
  <p>What does this do to a C# project and what is it telling visual studio to do? MSDN has this to say but I wasn't entirely sure what they meant or where this would be applicable(<a href="http://msdn.microsoft.com/en-us/library/bb165747%28v=VS.90%29.aspx">MSDN MSBuild</a>):</p>
  
  <blockquote>
    <p>A project subtype can also modify the XML fragment before or after it delegates the call to an inner project subtype. The following example shows an excerpt from a project file, where a name of a file that contains properties specific to a project subtype, is passed to that project subtype </p>
  </blockquote>
  
  <p>Any insight is appreciated!</p>
  
  <p>Thanks!</p>