Yesterday, i deployed a website base on siverlight encountered a error.
                  ErrorType:InitializeError
                                     Message: 2104 An error has occurred , when i browsed by IE encounterd a issue

 

The root cause is that IIS server is not correctly  configured  for Siverlight. We need to add to MIME extension for siverlight.

solution:

Add below MIME type on IIS server for siverlight.

Extension MIME Type
.xaml application/xaml+xml
.xap application/x-silverlight-app