Connectify is application that lets you transform your Windows 7 PC into a Wi-Fi hotspot. After installaton, you’ll see a new icon in your system tray. Click icon to set up your Wi-Fi network by entering in network name, passphrase, and by choosing which internet connection you’re planning to share from drop-down provided. Once that’s done, click “hotspot on” button to start sharing your connection. That’s it! Anyone looking for your wireless network’ll see it in their list just as any other Wi-Fi network would appear. And your wireless hotspot is encrypted with WPA2-Personal (AES) encryption. Your security is as strong as Passphrase that you select.
More info: Download