In this post Scott Barnes shares some useful and detailed information about the install experience for Silverlight.
When I was in the Silverlight Product team, I had many visions of where I wanted to take the product beyond where some of my co-team mates were comfortable with (slow painful incremental growth in terms of change).
One of the main focal areas I wanted to fix, was the overall Installation and Preloading Experiences for Silverlight. In that, i think it’s essentially the like the IRAQ war of software (i.e. meaning, its so far embedded now that fixing it is going to take generations of change).