you have been posting a slightly extended question after you posted this question.
Here is the answer you have received from this question:
" Hi,
If you start with just .\mosquitto.exe then it won’t load a config file. You should use .\mosquitto.exe -c mosquitto.conf. Even better, use mosquitto as a windows service and it will load the config for you from C:\Program Files\mosquitto\mosquitto.conf.
I hope that helps.
Roger"
If you need further information or advice please let me know.