tell your friend to try and burn the iso image to a CD and install it from there..
sometimes also, ISO extraction doesn't work quite rite.. you should really try and use UDF format because it retains the file structure and names exactly..
This is what I've done.. extract the .iso file using isobuster
burn the udf image to a cd, install and play..
as amuuro pointed out.. you may have to replace the .exe file with another version that allows you to play the backed up version..