If you are using URL rewriting you might know that you have to take care about the way you reference resources has written in the Scott Guthrie post; Tip/Trick: Url Rewriting with ASP.NET:
Handling CSS and Image Reference Correctly
As you might know, I am running the French .NET portal Tech Head Brothers and I am always searching for good way to optimize it and make it run better.
Following the post of Jeremy Zawodny's blog: "How To Add Good Expires Headers to Images in Apache 1.3" I decided to check this on my server running Tech Head Brothers on IIS 6.0.
If you place on a web page a ModalPopup and a Silverlight control, you might end up with the ModalPopup hided by the Silverlight control.
To avoid this at the time you call Sys.Silverlight.createObjectEx you need to give the following property to true: