The Visualization-Studio from Winamp is able to do much more things. When u start the Plug-In, make a double-click on it and you'll see the preferences. There you can configure the mode (windowed or fullscreen). But this tool can do much more. You can show the plug-in as the windows-bakcground. I am not able to show you how, because I am at work and here I have no winamp. But when I am at home again I'll look my preferences.