IIS Mime Types: MP4

For some weird reason IIS does not enable the MP4 mime type by default. In order to fix this here are the steps:

1. Open IIS, right click "Web Sites" go to properties.
2. Click the HTTP Headers tab.
3. At the bottom click "Mime Types..."
4. Click New...
5. Under extension type ".mp4" under MIME type type "video/x-mp4" (both without quotes)

If you are looking for the correct extension and mime type to add a full list can be found here.