What you do is put a short cut to VLC media player on your desktop, then when you want to preview a video you go to the Incomplete files folder in the LW library, hi-lite the file you want to preview then drag-n-drop it onto the VLC short cut and it will launch VLC and start playing the file automatically. It's a little more work but it will work

You'll have to move limewire over some so you can see the VLC short cut.

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