网站添加如下MIME Types：
.xaml application/xaml+xml
.xap application/x-Silverlight-app
支持WPF和Clickonce应用程序，需要添加如下MIME Types：
.manifest application/manifest
.application application/x-ms-application
.xbap application/x-ms-xbap
.deploy application/octet-stream
.xps application/vnd.ms-xpsdocument