Here you go:
I never tried that or download any .iso files. I mainly deal with .rar and zip files. There are limitations on the free version.
The limit of unregistered version are as following:
1. Can not extract a file greater than 3MB.
2. Can not convert an image greater than 100MB.
3. Can not save an image greater than 100MB.
4. Can not save an image greater than 100MB as new file.
Sucks, but I would see about getting the full registered version p2p, if you know what I mean.