指点迷津（在线，等）
我从网上下载了一个动态网站，为什么不能在IIS里面运行呢？其主文档是指定下载的网站文件夹。
运行是，出先一段英文，（Server Application Unavailable
The web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry your request.
Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur. ）
请问为什么不能浏览呢？
