Maybe in some places there is only one cable interface (hotel, conference room, etc.) and you need to share a network connection with someone or another device. Connectify is a free software that allows your Windows7 computer to achieve this function.
Note: Connectify only supports Windows7 home and later versions and does not support the entry-level operating system only works with Windows7 house and Above,starter are not supported.
Connectify
The installation is simple and convenient, when finished, you can open connectify through the icon in the taskbar.
In setting up settings, establish a name and login password for your wifi, and then select a network connection method. The software supports LAN mode, VirtualBox host-only mode, wireless network connectivity, and connections that are used only for sharing without access to the network. When the settings are complete, click the Create Hotspot Start Hotspot button.
You can now see that it is running and you can start connecting to the network with other devices through the hotspot.
Now that Connectify is running in the WINDOWS7 environment, we can search and connect to the XP system's wireless network.
How to set up a WiFi hotspot under Windows XP,