title: Silverlight 4 open pdf file in native client application
body: <p>Hi i am working on a silverlight4 application running in browser. now i am trying to open PDF files but pdf files being opened in new tab of the browser. I want them to be open in native  application as adobe or acrobat reader if installed. otherwise prompt a message to user. Any help is welcome. i tried many ways but nothing seems to be working.Tried to use AutomationFactory but not available.</p>