Need help setting up WiFi usind ad-hoc method

Hello everyone. I was wondering if anyone knew how I can use my laptop's ad hoc as Wi-Fi for my DS/Wii. The connection shows up on the DS and Wii but it won't work on either of them. Please, do not tell me to get a router or a Nintendo USB Connector (Nintendo doesn't even sell these anymore in case you didn't know) because I am 100% broke and my parents are not going to supply me with money just to buy some device that will enchance my gaming experience. I have read about people that have managed to pull this ad-hoc Wi-Fi trick off. I really need to know how to set everything up and if there is any special programs that are needed or would facilitate the process. Thank you very much in advance! :D

have you tried looking it up on like google or something or wikipedia and if those dont work maybe theres something on the nintendo support website