Server Application Unavailable 的解决方法

我做的一个网站,发布上去之后,总是报:

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.

这个错误,分析了半天原因终于找到了其中的一个原因,就是网站的文件夹的IIS_WPG用户组的权限有些问题,将其中的所有拒绝的权限都放开就可以了.