WPF browser application which can run WPF in browser.
1. For WPF browser
application you need .Net framework to be installed in the client
location while for silver light you need only the plug-in.
2. So in other
words WPF browser applications are OS dependent while SilverLight is
not.
3. SilverLight plug-in can run in other OS other than windows while
we all know .NET framework only runs in windows.