You'd better teach how to retrieve the windows media format runtime from the media player packages designed for any specific platform. That'll probably give a lot less errors.
Just download the media player package for your specific OS version and unpack it. One of the files is the wmfdist11.exe file which you are after. Unpacking is done with Total Commander (Alt+F9, unpack specific file), or any other utility capable of unpacking .exe files.
Windows Media Format 11 Runtime on 10 April 2011, reviewed by: dw817