Because of necessity here comes curiosity...
I just discovered ConnectifyMe which can make your Windows 7 a wi-fi Router!
No additional hardwares just install and prestoooo!
Share, Save, Simplify
Connectify is an easy to use software router for Windows 7 computers. After downloading and installing the lightweight application, Connectify utilizes your computers' built in Wi-Fi card to wirelessly share any available Internet connection: a cable modem, a cellular card, or even another Wi-Fi network. Other Wi-Fi enabled devices including laptops, smart phones, music players, and gaming systems can see and join your Connectify hotspot just like any other Wi-Fi access point and are kept safe and secure by password-protected WPA2 Encryption.One App, Endless Uses
With Connectify you can share expensive airport Wi-Fi with co-workers, create a hotspot in your ethernet-only hotel or dorm room, even extend the range of your home router.See Connectify in Action
Watch our demo video and see how in a few clicks you can have your very own Wi-Fi hotspot up and running, sharing your Internet connection with friends and co-workersSoftware Based Wi-Fi Router
Take any Internet connection and share it wirelessly with no additional hardware, wires, plugs, or chargersConnect with Mobile Devices
Easily connect any number of Wi-Fi enabled devices to your network including laptops, phones, gaming systems, and moreSave Your Time and Money
Connectify is Ad-supported and free to download and use. Best of all, it can actually save you money!http://www.connectify.me
