Alejandro,
He encontrado una solución momentánea, nosotros tenemos el ejecutable en una unidad de red. Buscando nuevamente en internet abro esta direccion https://stackoverflow.com/questions/22712988/error-informix-odbc-driver-network-driver-cannot-open-the-network-device y en el comentario una persona dice de copiar el ejecutable de forma local.
"I’ve finally solved this problem!
In my case my programs are saved on a network directory which is connected to my pc. I’ve copied the exe file on my C: an it works.
So the problem must have been that i can’t run a program via a network directory. Knowing this the error message “cannot open the network device” makes sense. I think normally it had to work as well but for now i am happy with it :)"
Probamos con unas máquinas y efectivamente no nos da el error.