Today i will show you how to use a windows Vista laptop as a wireless adapter for a xbox 360.I'm not sure if it will work with windows xp or windows 7 but it might.

Step 1: What You Need

For this you will need:
A xbox 360
A vista laptop that has internet connection
A ethernet cable

Step 2: Set Up Your Laptop

First click on the start menu and go to network

Step 3: Seting Up

then you should go to a page (look at the pic) and then click on "network and sharing center"

Step 4: Seting Up

now you should be on this page (look at pic) then click on "manage network connections"

Step 5: Seting Up

then you shold be on this page (look at pic) the right click on "wireless network connection" and go down to "properties" and click on that

Step 6: Seting Up

then this should pop up (look at pic) just click on "continue.
then this should pop up (look at second pic) then click sharing.
then check both the boxes (look at third pic)
then go to the bottom and click "ok" (look at last pic)

Step 7: Connecting

now all you have to do is connect your ethernet cable to your laptop and xbox.
now first your laptop must be on and open to work and then turn on your xbox
if it doesnt work then:1. make sure the laptop is on.
2.make sure the laptop is on before you turn on the xbox.
if it still wont work just put a comment and i will try to help you.