Connectify

Connectify is a free Windows 7 application that turns your laptop or home computer into a real WiFi hotspot to share the Internet with friends, co-workers, and mobile devices. Connectify allows you to take any Internet connection and share it wireless with no additional hardware, wires, plugs, or chargers. You can then easily connect any number of WiFi enabled devices to your personal network including laptops, phones, gaming systems, and more.

WiFi enabled devices can see and join your hotspot just like any other WiFi access point and are kept safe and secure by rock solid WPA2 Encryption. So don't break the bank paying for multiple WiFi connections on the road, Connectify is free and can actually save you money.

Making a virtual WiFi network connected to your computer has never been easier. Just install this application, set a name and a password and your clients will detect automatically your wireless network and will be able to connect at your computer in order to share the same Internet connection.

At least Windows 7