IIS will not serve up a file that is not present, so your handler will never fire if the update path is invalid.
IIS不能处理未在列表中的文件，所以如果更新路径无效的话你的处理器将永远不会触发。
IIS will not serve up a file that is not present, so your handler will never fire if the update path is invalid.
IIS不能处理未在列表中的文件，所以如果更新路径无效的话你的处理器将永远不会触发。
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