Connectify Hotspot PRO allows you to share your Internet over your Ethernet port.  One of the greatest things about this feature is all the different ways you can use it, but let's look at one basic and common use case.

In this example, you want to share your internet with an older console without Wi-Fi, but the only Internet connection available is Wi-Fi. Connectify Hotspot can solve your problem by taking the wireless connection from your laptop or PC and share it over your Ethernet port with the console. All you will need is Connectify Hotspot PRO and an Ethernet cable.

1. Open Connectify Hotspot and select your Internet source: Automatic
2. Under the Advanced section in the Settings Tab choose your Ethernet adapter from the Share Over dropdown
3. Click Start Hotspot

You can connect multiple Ethernet devices at the same time by connecting an Ethernet hub (not a router, a hub) to your PC's Ethernet port.  Then just plug all of your Ethernet devices into that hub, and they will all be on the new, wired network together.
 
CAUTION: Connectify Hotspot's Ethernet sharing feature makes Connectify Hotspot into a wired router (DHCP server).  You should only run one such wired router on a given network, so don't plug into someone else's working Ethernet network, and share onto it.  Connectify Hotspot should automatically detect this and stop you; however, it could cause networking conflicts.