As Footy was designed and programmed for an older era of computers, it becomes a challenge to run the game under the newer operating systems (OS) or on much faster computer (compared to 1996). The game may run too fast, or not at all because in a modern OS one does not have the ability to communicate with the hardware directly (this was done to make things run quicker).
Luckily we have DOSBox nowadays that allow players to run older games in their modern set-ups. This page will step you through the process. You can also refer to their tutorial.