The reference tag is useful for catching mis-writes of data to an incorrectblock, where the application tag can be used to catch other errors in the software stack.
参考标记对于捕获对不正确块的错误写入非常有用,其中应用程序标记可用于捕获软件堆栈中的其他错误。
A bit of an obscure infinite recursion situtaion that unfortunately is pretty common is incorrect usage of the Exception Handling application block.