A friend of mine has wireless internet access in her home. Now if she wants to let another computer use the internet while she is useing her computer is a router needed? Yes the other computer will have a wireless card.
you can use ICS if you want to run a ethernet cord..
You are going to have to give more details.. does she get her internet via wifi? if she does.. does she have a receiving router or does she just use the one client computer?