I need to create a custom RSS feed which would access a bunch of sales data from the database and consume from my silverlight 3 app.  I followed your video.  Everything works fine when I run from within the syndication library project. But when I try to consume the feed from silverlight app, it just doesn't seem to work. I get System.Security.SecurityException. So I placed the clientaccesspolicy xml at the silverlightapp.web project. Still doesn't seem to work. Do I need to host this syndication library on IIS? By default, it seems to be self hosted and I see that in your demo, you are hosting your feed on feedburner.  Do I need to create silverlight enabled WCF somehow? Also, I was wondering about the "Design_Time_Addresses" in the generated url - http://localhost:8731/Design_Time_Addresses/myLibrary/Feed1/ ?

 

Thanks in advance...