title: Is it possible to create a Windows Form in a C# Class Library?
body: <p>I've been building DLL class libraries in C#, used as add-ons to an application which provides a Custom API.  Up until now they've included mostly interfacing with databases, calculations, disk operations and so forth.  I'm curious to know if I can build and display a Windows Form, displaying text boxes, buttons and so forth, inside a DLL Class Library?</p>
  
  <p>I tried:</p>
  
  <pre><code>using System.Windows.Forms;
  </code></pre>
  
  <p>But that namespace is not recognized. </p>
  
  <p>Thanks for the input.</p>