very good but not quite complete

I tested the Chromecast key: everything works fine and the installation is very easy ... it's on this side a very positive point.
But cons, we can not (yet) do everything with.
I had taken this key to view Bein Sport channels (visible on PC) on the big screen via a video projector but Chromecast not support the adds-on silverlight necessary for viewing of sports channels and Bein 'sadly we are left with a black screen ... what a pity!
I therefore refer this key, useless for me because the use I wanted to do is not possible. Thank you to Amazon, for its readiness to accept the return and refund of the item.
This key can sometimes find cheaper elsewhere, but I always prefer to buy this type of object at Amazon, because at least if one is disappointed by the product, we always have the return of the product solution (free) .