试了好多方法了，为什么浏览不了

[luoluoflying]

环境：xp+iis5.1
我浏览的是光盘里的源码，设置好虚拟目录后有的aspx文件可以浏览，有的则不行，是什么原因啊？下面是报错内容

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 46: 安全身份验证模式。
Line 47: -->
Line 48: <authentication mode="Windows"/>
Line 49: <!--
Line 50: 如果在执行请求的过程中出现未处理的错误，

[zabcd117]

看看这句话"This error can be caused by a virtual directory not being configured as an application in IIS. "在IIS里面这个这个虚拟目录，然后右键鼠标，“应用程序”那里确定已经创建试试。