Make your Windows7 machine a Wireless hotspot

Connectify & Virtual Router

With this method you will only need an internal/external wireless network card on your Notebook or PC with Windows 7 and not require any additional devices. However the signal coverage will not be strong as the real hotspot - Access point.

All you need to do is run any of the programs,
Connectify or Virtual Router
Provide a name and password for your network, and you’re done.
Your wi-fi hotspot will be up and running within minutes.

Windows 7 (and Windows server 2008) [will not run on XP or Vista] have new ’Virtual Wifi’ and ’Wireless Hosted Network’ features that make it possible for your PC to set up a wi-fi hotspot, provided, of course, that the wifi device and its driver support this feature as well.

Supported wifi device list:
For Connectify
For Virtual Router

DOWNLOAD:
Connectify
Virtual Router