Rodney Pont wrote on 5/26/2015 1:22 AM:
On Mon, 25 May 2015 22:46:03 -0400, Big_Al wrote:

When I right click a PNG file and pick the 'open with' option and then 'choose default program', I get one item in the
list that is "%1".
I'm going to admit that I was editing the programs that open and edit PNG files a few days ago and I guess something got
mistyped. But now I have this idiotic "%1" item. Does anyone know where the list is stored.

What happens if you highlight the item and press del?

clicking the item selects it and closes the window. Well, for all others but since "%1" is invalid, it just returns to
the list to select another.