ASF (Advanced Stream Format), fluendo, flumotion -- which do I want ??

[William Case]

Hi; 

I just received an email attachment that is *.wmv.  When I open it I
receive the following error:

"An error occurred
The playback of this movie requires Advanced Streaming Format (ASF)
demuxer plugin which is not installed."

Google says I need fluendo.  Fluendo appears not to be Open Source or at
least not free, but Fedora repository has a flumotion program that is
related.  What do I want to install to watch this 10 second movie??

-- 
Regards Bill