Windows 7 and above has a neat feature called hosted networking. This allows you to turn your laptop into a wireless access point. This is very useful if you want to share your laptop’s Internet connection with other wireless devices or (the reason I use it) for testing.
To set up a network open a command prompt and run the following commands
netsh wlan set hostednetwork mode=allow ssid=”GremlinsTestAP” key=”Pa$$w0rd” netsh wlan start hostednetwork
This will create a wireless access point named GremlinsTestAP with a password of Pa$$w0rd
To shutdown the network run
netsh wlan stop hostednetwork
More detailed info can be found here: