Quote Originally Posted by 'Evilseed',index.php?page=Thread&postID=146714#pos t146714
Warning - For the time being, DO NOT INSTALL SILVERLIGHT! There are some fantastically huge security complications you open yourself up to by doing so.

My 2 cents: Suvega, building a website which requires the installation of any uncommon software component, insecure silverlight or not, isn't a good idea.
I was not able to find a single reported vulnerability in Silverlight. I searched Securityfocus.com and Secunia. As far as I can tell there isn't one known vulnerability in it. Where did you get your information from?