MFreeCookie [FirstShape.w[,LastShape.w]] ; Free a Shape's cookie, a range of Shape's cookies, or all cookies

Free's a speific, all or a range of previously-created cookies in
previously-created chunky Shape objects. Only the cookie is freed. If the
parameters are omitted all cookies in any created chunky Shapes will be freed. If
a second parameter is specified then a range of shape's cookies will be freed.