Flv MIME Type is the usual method for serving video content on the web. Windows Server 2003, and other Microsoft Windows servers, are not configured by default to support .flv MIME Type.

How to check if .flv MIME Type is enabled on a web server?

You can post a .flv file to the server and navigate to the URL of that file. If you can't see the movie or Open/Save file dialog box, or you see long strange string in your browser, your web server is not set up to serve .flv files.

Adding .flv MIME type in IIS

1. Select the site in IIS, right click and select Properties.
2. Under the MIME Map section of HTTP Headers tab select File Types and then select New Type.
3. Type ".flv" as the associated extension and "video/x-flv" as the content type.
4. Select "OK" to finish the setup.