FLV files in Windows Media Player
The latest versions of Windows Media Player should play Flash FLV files without any problem, but you may need to install a media decoder first. If your version of WMP doesn't work with FLV files, try installing ffdshow.
When you open an FLV file the player may give you a warning message saying that it doesn't recognize the file extension — click OK and play the file anyway.
On a Web Page
To use Windows Media Player to stream FLV files on a web page, you first need to set the mime type for FLV files. Once you've done that, you can use the normal embedding code to place the player on a page. The example below shows the basic code — for more detailed instructions see Embedding Windows Media Player.
Note: In most cases Windows Media Player is not the ideal choice for Flash video files. On public web pages it is a very poor choice as many people won't be able to see the video. It is better to use a Flash-based player, for example, our free Flash Video Player.