Dcom configurator

I put it in Security but I'm not sure it goes there.
I would like to know how to use correctly and how to optimize utility Dcomcfng. I discovered that utility by trying to find a way to stop communication between my workstation and my network. By using it and uncheck the option (Enable distributed Com on this computer) it works partially. But there is a lot of options in this interface and I wonder if somebody knows it and can instruct me on the consequence by modifying default settings.