I wonder if this is the sort of thing that Power Automatic can achieve with a hotkey, or in a batch file that can be run with a mere click.

I wonder if this is the sort of thing that Power Automatic can achieve with a hotkey, or in a batch file that can be run with a mere click.
setdefaultbrowser.exe is supposed to do it, but I can not get it to open long enough for me to interact with the window.