IIS7.5 配置自定义后缀的ASP文件 无法执行 总是提示下载的解决方

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
  <system.webServer>
    <httpErrors>
      <remove statusCode="500" subStatusCode="-1" />
      <error statusCode="500" prefixLanguageFilePath="\inetpub\custerr" path="500-100.asp" responseMode="File" />
    </httpErrors>
    <directoryBrowse enabled="false" />
    <defaultDocument>
      <files>
        <clear />
        <add value="index.新后缀" />
        <add value="default.新后缀" />
      </files>
    </defaultDocument>
    <handlers>
      <add name="ASP-新后缀" path="*.新后缀" verb="GET,HEAD,POST" modules="IsapiModule" scriptProcessor="%windir%\system32\inetsrv\asp.dll" resourceType="File" requireAccess="Script" />
    </handlers>
  </system.webServer>
</configuration>