By default IIS only serves known MIME Types. For those MIME Types it's not aware of, IIS will return a 404 Not Found error. You can make IIS aware of any custom MIME Type via the control panel using the following steps.
- Login to the control panel at, http://cp.hosting365.ie/
- Click on the "Web Options" icon
- Select the Domain/Site, if prompted
- Scroll down to "MIME Type" and click on the up arrow
