比如 *.act 都是 html,
IIS handler mappings里添加对 *.act script的处理文件
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll
%windir%\system32\inetsrv\asp.dll

提示出错:
HTTP Error 404.17 - Not Found

The requested content appears to be script and will not be served by the static file handler.
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FROM 211.99.222.*