Ever needed the internet connection you have on laptop/PC on your mobile phone. You can have that with a single click if your phone has wifi capabilities.
NOTE: You only need to setup the hotspot once.
Instructions:
- Download an application named “mhotspot.exe“. Double click the mhotspot.exe file. Click on SETUP HOTSPOT.

- Setup the hotspot name and password for the wifi access.

- Now, go to network connections and select the internet connection you want to share and right click the connection and choose properties.

- Now,check the available connections and select the internet connection that you want to share.
- In properties, under sharing tab tick the “Allow other users to connect through this computer’s internet connection” and select the created wireless network.

- Now click START to enable sharing your internet through wifi.
Click STOP to disable sharing.
As easy as that.
[via mhotspot]
How to do it for windows XP
There is no need of using any software. You can do it without any application. This can be done only with the help of microsoft inbuild commands from command prompt. If you are using windows 7, then follow the steps described in this link.
bloggersoham.blogspot.in/2012/08/share-pc-internet-with-android-phone.html
Hope this would help.
-Soham
Only works on Win7. I use an alternative to mhotspot, called connectify.me.
Pingback: Reverse USB Tethering « Ace Tips
Pingback: Reverse wifi tethering (without any external app) « Ace Tips