You say you have WMP. No, you don't have to download it. You may have to upgrade it though. Do this and tell me what you find.

While in Limewire, click the Library tab. Now click EXPLORE in the lower left corner. This will take you to your shared/saved folder Outside of Limewire. Now Right click on any file. Go to Open With, click Choose Program. If you see WMP Click on it and it will highlite. Now Put check in box; Always use program to open.... click OK.

I would suggest taking a look at VLC Media Player. It is a prefered player here on the forums. See Link below. If you decide you want to try it, you will have to Download It.

VLC media player - Overview.

Hope this helps.

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