Why does the "Win Pop-up message" fail?

The Windows Pop-up messages are delivered through UDP packetsand this service has low priority in Windows system. As the testingresult shows, Windows system possibly could receive the WinPop-upmessages without showing them up. Moreover, If the personalfirewall is enabled in the system, the WinPop-up message could beblocked by the firewall policies. ln addition, the WinPop-upservice is able to be shutdown freely in the target system.

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