title: What do I need to work with a Visual Studio .dtproj file?
body: <p>I have a .sln file created in Visual Studio 2010:</p>
  
  <pre><code>Microsoft Visual Studio Solution File, Format Version 11.00
  # Visual Studio 2010
  </code></pre>
  
  <p>This has a single Project which is a .dtproj file. The header of this file looks like:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;Project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt;
    &lt;DeploymentModel&gt;Project&lt;/DeploymentModel&gt;
    &lt;ProductVersion&gt;11.0.2100.60&lt;/ProductVersion&gt;
    &lt;SchemaVersion&gt;9.0.1.0&lt;/SchemaVersion&gt;
  </code></pre>
  
  <p>I have VS 2010 Professional installed, but when I try to open this solution I get an error that the project type is not supported.</p>
  
  <p>This machine also has VS2008, VS2012, and SQL Server 2008R2 with the BI Dev Studio.</p>
  
  <p>What am I missing?  How can I get support for this .dtproj project type?</p>