在MIME Map部分，点击File Type并且输入以下信息：
Associated Extension MIME Type
wml text/vnd.wap.wml
wmlc application/vnd.wap.wmlc
wbmp image/vnd.wap.wbmp
wmlsc application/vnd.wap.wmlscriptc
wmls text/vnd.wap.wmlscript
wsc application/vnd.wap/wmlscriptc
支持java下载：在iis中需要添加
.jad text/vnd.sun.j2me.app-descriptor
.jar application/java-archive
支持sis文档下载：在iis中需要添加
.sis application/vnd.symbian.install
