Windows 7 Wi-Fi Hotspot with Connectify

Many of us these days have more than one device that we'd like (or need) Internet connection for -- smartphones and tablets, laptops and mobile Internet devices. Hefty tethering charges and fees for wi-fi hotspot access when you're away from home or traveling can add up for all those devices; it isn't always economical to pay to have all of them connected. Thankfully, there's free software called Connectify that can turn your Windows 7 laptop into a wi-fi hotspot or wi-fi access point of sorts, sharing its Internet connection over wi-fi with any other nearby wireless devices (any wireless-capable device, running Windows 7 or not). Here's how to use Connectify to get wi-fi Internet access on multiple devices through your Windows 7 laptop.

Note: If you have a wired Internet connection (e.g., one Ethernet connection in your hotel room) or a 3G cellular data modem for your computer, you can also use Internet Connection Sharing, a built-in Windows feature to share an Internet connection. See How to Share Internet Access (XP), Share an Internet Connection on Windows Vista, or Share an Internet Connection on Windows 7. If you have a Mac, you can Share Your Mac's Internet Connection via Wi-Fi as well.

source from about.com