Just install the language of WMP you desire on top of the existing install
and you should be fine. :)

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(speaking for myself and doing this in my free time)
See http://www.nwlink.com/~zachd/pss/pss.html for some helpful WMP info.
Following up to your post with the resolution is good netiquette.
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> Could someone please tell me how I can change my language
> of windows media player. My language is like swedish or
> something!!!
> Thank you very much...