Help me choose a program for distributing cable Internet via Wi-Fi

Question

WiFi

There are three computers in the room: Windows 7, Windows 8.1, Windows XP. There is a local Internet connection, I would like to distribute it using a Wi-Fi network. Distribute should be a computer with Windows 8.1 on board. A great option is to use Connectify, but the free version is cut off all the time, and the paid one is a little expensive (we are students). Tried free alternatives but they either do not work at all, or they create a network but do not distribute the Internet. Recommend a solution.

Answer 1

To distribute the Internet via wi-fi, they came up with special things, they are also called wi-fi routers.
Students/expensive? Aliexpress has a good selection in the price range of $5-7.

Answer 2

A great option to use Connectify, but the free version is cut off all the time, and the paid one is a little expensive (we are students)

There is a small life hack to use the old version of Connectify (3.5.1, for example) which does not have this limitation.

Answer 3

Everything is done by means of Windows. It is necessary to raise the Ad-Hoc network (computer-to-computer). In Windows 8 (and maybe in 7) this function was removed from the interface, but everything works through the command line.
Article: http://www.redmondpie.com/how-to-set-up-wireless-ad-hoc-internet-connection-in-windows-8/
Enter commands as administrator:

netsh wlan set hostednetwork mode=allow ssid=<enter_network_name_here> key=<enter_password_here>
netsh wlan start hostednetwork

The network will crash after a reboot, so add commands to autorun.

Answer 4

vlc is all you need.