Copy Shortcut "C" doesn't Copy Multiple, but typing in COPY does?

I have a keyboard shortcut for Copy (see directly below). This command doesn't copy multiple. But if I type "Copy" at the comment prompt (AutoCAD 2013) the copy multiple is the default. Does anyone know what the problem is? Copymode is already set to "0".

(DEFUN C:C()
(setvar "SNAPMODE" 1)(COMMAND "_COPY")
(PRIN1)
)

Thanks, John W.