How to add a new protocol in windows

I want to add a new protocol in my system. I want to make it as news and I am thinking that windows mail would be the default mail program to handle that protocol. Unfortunately I have failed every time I tried to add the protocol. What I did was went to the control panel and from there selected the associated file or protocol but that allows me to change only the existing program and does not allows me to add any new entry. So do you have any suggestions on how to add a new protocol.



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