title: How to save an EXIF format image file in .NET 3.5
body: <p>I want to save an image in EXIF format using System.Drawing.Image.Save or a similar method in a C# application using .NET framework v3.5.  The MSDN documentation lists EXIF as an option for ImageFormat. However, it does not seem to be supported - at least not without some configuration unknown to me.  When I enumerate the built-in encoders via ImageCodecInfo.GetImageEncoders() EXIF is not included.  (Built in encoders on my machine (Vista Ultimate x64) are: BMP, JPEG, GIF, TIFF, and PNG.)  If I save an image using the ImageFormat.Exif property, I simply get the default PNG format.</p>
  
  <p>How can I save an image in EXIF format using .NET 3.5?</p>