title: How to install .NET Framework 3.5 SP1 into Visual Studio 2017
body: <p>I am migrating a project from VS 2008 to VS 2017.</p>
  
  <p>When I opened the project in VS2017 I was prompted if I wanted to update it to 4.6.1, or keep it as 3.5.</p>
  
  <p>I chose to keep it at 3.5 and a browser window opened to this page:
  <a href="https://www.microsoft.com/net/download/visual-studio-sdks" rel="noreferrer">https://www.microsoft.com/net/download/visual-studio-sdks</a></p>
  
  <p>Presumably that is to download 3.5.  However, there is no "Developer Pack" for 3.5.  </p>
  
  <p><a href="https://i.stack.imgur.com/phJ7Y.png" rel="noreferrer"><img src="https://i.stack.imgur.com/phJ7Y.png" alt="enter image description here"></a></p>
  
  <p>So I don't have clear idea of what to do.</p>
  
  <p>Here are some additional notes:
  There is not solution file in this project.  I opened it in VS2017 using <code>File -&gt; Open -&gt; Website...</code></p>
  
  <p>I am willing to update to 4.6.1.  I am deploying to IIS 8.0.9200 if anyone has additional tips on updating to 4.6.1.</p>
  
  <p>I am a long time coder, but I am new to windows development so if your answers can use terminology that I see on the screen then it will be helpful for me to understand the answers.</p>
  
  <p>to move forward I choose to update to 4.6.1 because the screen explicitly stated I could move back to 3.5.</p>