FORBID_FILE ~override\C!World.xxx~ @13with
ACTION_IF FILE_EXISTS ~override\C!World.xxx~ THEN BEGIN FAIL @13 END
COPY ~Refinements\C!Null.xxx~ ~override\C!WpAnim.xxx~with
COPY_EXISTING ~sw1h01.itm~ ~override\C!WpAnim.xxx~
COPY ~Refinements\C!Null.xxx~ ~override\C!World.xxx~with
COPY_EXISTING ~sw1h01.itm~ ~override\C!World.xxx~
FORBID_FILE ~override\C!WpAnim.xxx~ @13with
ACTION_IF FILE_EXISTS ~override\C!WpAnim.xxx~ THEN BEGIN FAIL @13 END
Otherwise, every time the installation runs, the component will be automatically uninstalled. In the (source) G3 tweak Pack, they do it the way I pointed out.