Daemon tools is a utility that let's one mount cdrom iso images as 'drives' in Windows. The new versions of Daemon contain spyware, I think. So I no longer recommend it unless you have an old version.
Microsoft has a free, unsupported utility. It's small. No spyware. Install is a bit weird. Works.
Search for: winxpvirtualcdcontrolpanel_21.exe
Apparently 7-zip will open ISO files for reading.
Tags: image, disc, dvdr, .iso