find the file folder of Desktop Goose, find "GooseDesktop.exe" double click it, if it is flagged as a virus its because of the weird properties of the file, to clarify this: Desktop Goose is NOT a virus. "config.ini" is where you can modify the behavior of the goose.
P.S. This is how i got MY Desktop Goose to work, i'm not sure if it will work for YOU, but it will most likely work. Also open the readme.txt file for details on the goose and you can Hold Esc for a few seconds to remove the goose.