Change Title Bar of Window Media Player:

1. Open regedit.
   ( Click Start --> Run and type regedit and hit ok).
   
2. Navigate to:
   HKEY_CURRENT_USER\Software\Policies\Microsoft
3. Right Click on "Microsoft" Folder and then New--> Key.
   
4. A new folder will be added. Named it as WindowsMediaPlayer.
   
5. Now Right Click in the right Panel and then New-->String Value.
   
6. Name this value as "TitleBar".
   
7. Now double click on it and type any text you want to display.
   
8. Click ok and hit F5 to refresh the registry.
   
9. Open the Windows Media Player. You will see that title bar will have the caption Provided by your text.