Windows only: WinCDEmu makes it easy to quickly mount and access the contents of CD and DVD image files you've extracted or downloaded.
Once installed, WinCDEmu adds an entry to your right-click context menu. Anytime you right-click on a supported image format—ISO, CUE, BIN, and IMG—you'll be able to mount it with a single click. From there, you can access the disc contents with any application or by browsing to the disc itself. To unmount the image, head into My Computer and eject the drive, or right-click on the actual image file and unmount it from there.