Option in Windows 7 for Tethering WiFi (act as a WiFi hotspot) to connect your other devices like mobile / tablets to internet

A detailed step-by-step to setup tethering in Windows 7 without any 3rd party software:

  1. From admin command prompt type:
    netsh wlan set hostednetwork mode=allow ssid=mywifinetwork key=mysecretkey
    
  2. Enable new virtual Wi-Fi adapter (it might be disabled upon creation)
  3. From admin command prompt type:
    netsh wlan start hostednetwork
    
  4. From current internet conection adapter share (ICS) to the virtual adapter
  5. Connect from wireless client to virtual SSID. Wi-Fi client gets an auto IP and you’re good to go.

After host computer restart you only need to repeat steps 3 & 5 to be up and running.

As a alternate (If facing any issues) simply you can download Virtual WiFi Router application

CNET URL : http://download.cnet.com/Virtual-WiFi-Router/3000-2651_4-75599199.html

Direct URL : http://www.virtualwifirouter.com/p/downlooad.html