no, it doesn't need a DS in order for it to work.Originally Posted by Slick_Gamer
the USB wifi dongle plugs into your PC and allows the Wii to connect
to the internet though the USB dongle. it is effectively the same as
windows internet connection sharing (ICS) which means that the pc will
need to be powered on if you want to access the internet on the Wii.
tbh, for a little bit extra, i would recommend buying a wireless router
to connect to your DSL modem. a router will enable your Wii to access
the internet independently of the pc.