按道理就是输入http://localhost/localstart.asp如果能够显示就是IIS启动嘛，但是我这样子是不能启动的，因为显示Server Application Error
The server has encountered an error while loading an application during the processing of your request. Please refer to the event log for more detail information. Please contact the server administrator for assistance.但是我还是建立了以我的站点为基础的虚拟目录，然后输入http://localhost/benny/about.htm就能够显示，这是怎么回事？