IIS7处理程序映射添加

在WebConfig文件夹中system.webServer节点下面添加

例如：

<system.webServer>
    <handlers>
        <add name="valimg" path="*.valimg" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="Script" preCondition="classicMode,runtimeVersionv2.0,bitness32" />
    </handlers>
</system.webServer>