MyPublicWiFi is a good option for those who want to share the internet with other mobile devices in the same local but do not have a Wi-Fi router.
For your machine to be able to transmit a signal it must be connected via cable to the internet and have a Wireless adapter. The computers and devices that will receive the signal must support Wi-Fi.
You will certainly not find any difficulties installing and sharing your connection with MyPublicWiFi. It's lightweight and doesn't interfere with your computer's performance, it has a simple and straightforward interface, and it's completely free.