You can setup your Windows 7 laptop as a WIFI hotspot.
right-click the Cmd.exe link and select "Run as Administrator".
Now type the following command:
netsh wlan set hostednetwork mode=allow ssid=MyNet key=MyPassword
and press [Enter]. Replace "MyNet" with the name you'd like to use for your custom network, and "MyPassword" with a password that's a little harder to guess.
Still at the command line, type
netsh wlan start hostednetwork
and press [Enter] to fire up the virtual adapter.
Now click Control Panel > Network and Internet > Network and Sharing Centre > Change Adapter Settings, right-click your internet connection and select Properties. Click the Sharing tab, check "Allow other network users to connect...", choose your virtual Wi-Fi adaptor - and that's it.