Article 3.1.1AD : 1883 port is not listening/established, how to solve it?

Article 3.1.1AD : 1883 port is not listening/established, how to solve it?

Step 1 : Install mosquitto-1.4.9-install-win32
Step 2 : Copy "pthreadVC2.dll" in to the root folder of mosquitto.

FYI - The purpose of installing mosquitto is to open 1883

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