Hello,

 

I acciently changed the "open with" setting for the custom songs files. I tried to do a guide that i seen using regedit. Unfortunately it still does not work. Does anyone know how to change the open with to default.

Assuming Windows, you should be able to right click on one of the files of the desired type (by file extension), select "Choose default program" from the "Open With" submenu and pick the program you want to open that file type when you double click on it. You may have to manually browse for the program if Windows doesn't offer it in the recommended/other list of programs.