I don't know if you know much about the automation industry, but reverse engineering a driver so you can run it on a newer PC would be an unacceptable risk. Are you confident in your driver being able to safely control the industrial equipment? A coal train which costs $1000s of dollars a minute for any down time? Are you willing to take the blame or deal with the lawsuit if something goes wrong? The other side of the coin is that some companies do have the budget and can invest in newer technologies, but the cut over to new equipment is just down time they cannot afford - so be it if there's a risk of larger down time in the future.