Try right clicking on the iso file and see if there is an exctract in the pull down menu, if there is then try extracting it to a folder.
if not look for a programme called winrar, might be a trial or free version on the net, just do a google for the winrar site, install this then try and see if there is an extract feature, (winrar will turn all your zipped files into an icon of a stack of little books, nothing to worry about though).
If this does not work then I would suggest getting a programme called "power iso" this should let you get into the iso file to get to the set up file of the programme.
Hope some of this helps, and tried my best in laymen terms.