title: Open image in Windows Photo Viewer
body: <p>How to open <code>.jpg</code> image in Windows Photo Viewer from C# app? </p>
  
  <p>Not inside app like this code, </p>
  
  <pre><code>FileStream stream = new FileStream("test.png", FileMode.Open, FileAccess.Read);
  pictureBox1.Image = Image.FromStream(stream);
  stream.Close();
  </code></pre>