Windows Media Player as a default player

To reset Windows Media Player as the default player follow the simple steps:

1. In Control Panel, open Set Program Access and Defaults.

2. In the Add or Remove Programs dialog box, in the Choose a configuration box, click Custom.

3. In the Choose a default media player area, click Windows Media Player, and then click OK.

For information on the supported file formats on Windows Media Player, please visit the following link:
http://support.microsoft.com/kb/316992

You can assign Windows Media Player to be the player for any file format type by doing the following:

1. In Control Panel, on the Tools menu, click Folder Options.

2. In Folder Options, click the File Types tab.

3. In Registered file types, scroll down to file name extension that you want (for example, WMA) and select it.

4. In the Details section for the file type (for example, Details for 'WMA') click Change.

5. In the Opens with dialog box, in the Programs area, select Windows Media Player, and then click OK.