Another option is to use Windows Sidebar Styler. This requires additional software to be installed alongside yours but also allows you to do things you can't do inside the XBAP sandbox without code signing certificates, user authorizaiton, etc.
Another option is to use Windows Sidebar Styler. This requires additional software to be installed alongside yours but also allows you to do things you can't do inside the XBAP sandbox without code signing certificates, user authorizaiton, etc.