Maryfi is a free and easy to use software router for Windows 7 computers. With Maryfi, users can wirelessly share any 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 Maryfi 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 Maryfi 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.