You can use archive extractors too, such as WinAce. That will allow you to pull files from the image. Anyway, you really don't open
ISO images. Usually, you burn them to a disc with a special program, or emulate a virtual drive and mount them to it with a special program. Try using Alcohol 120%. It is actually expensive, so if you can get it from a friend
on the net, then you wouldn't have to empty your wallet.