>Microsoft Virtual CD-ROM
>
Microsoft has for a long time had a very simple application for mounting ISO images to look like a CD-ROM. The application is called Microsoft Virtual CD-ROM Control Panel.
It is hard to locate though. The very link is here:
http://download.microsoft.com/download/7/b/6/7b6abd84-7841-4978-96f5-bd58df02efa2/winxpvirtualcdcontrolpanel_21.exe
and can for instance be found through here.
It works for 2000?, XP, Vista, 2003, 2008? but not Windows7.