
If you use Webamp, simply right-click on the player on the Webamp website and select Skins > Load Skin to select a skin from the local system. The skin is then available just like any of the default skins.

Note that this may require elevation and that you will get an "are you sure" prompt. Winamp users need to drop the skin file on the player interface to install it. It is not possible for instance to play Internet Radio using Webamp.

You can load local music in the player and play it right away, or play the default playlist instead.
