我的虚拟主机空间是1G自由主机，可以设置2个子目录，建3个独立网站。第一个网站是phpscup模板，运行提示如下：
Server Error in '/' Application.
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Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
Source Error:
Line 18: <pages validateRequest="false" enableEventValidation="false" enableViewStateMac="false" viewStateEncryptionMode="Never" />
Line 19: <compilation defaultLanguage="C#" debug="false" />
Line 20: <authentication mode="forms" />
Line 21: <customErrors mode="Off">
Line 22: <error statusCode="404" redirect="/error404.html" />
Source File: d:\webhost\hyb2011\web\hyb2013\web.config Line: 20
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Version Information: Microsoft .NET Framework Version:2.0.50727.3625; ASP.NET Version:2.0.50727.3618
问题说明：web.config 文件里面<authentication mode="forms" />
修改为<authentication mode="windows" /> 还是出现上面的提示。
请高手赐教，谢谢。我想有一个PageAdmin网站