WinCDEmu
WinCDEmu is an open-source CD/DVD/BD emulator - a tool that allows you to mount optical disc images by simply clicking on them in Windows Explorer. If you have downloaded an ISO image and want to use it without burning it to a blank disc, WinCDEmu is the
Emulate the Cd-Rom drive from a USB stick
No, those sticks emulate only a 6 Mega Byte CdRom unit, you can (but in an unofficial way) mount an ISO image different from the original one, but 6 MegaByte is too few for an operating system.
PowerISO
PowerISO can create bootable USB drive from ISO file, you can then use the USB drive to setup Windows, Linux, or other operating systems. It can also install Windows to USB drive, copy USB drive to image file, and write the image file to USB drive.
DAEMON Tools Lite
DAEMON Tools Lite is ideal to work with files you have and to create new images from optical discs, data files and Audio CDs. Your files are safe with VHD backups and TrueCrypt containers, as DAEMON Tools Lite 10 enables you to choose a way to store and p
WinCDEmu Portable
WinCDEmu is an open-source CD/DVD/BD emulator - a tool that allows you to mount optical disc images by simply clicking on them in Windows Explorer. It supports one-click mounting of ISO, CUE, NRG, MDS/MDF, CCD, IMG images and an unlimited number of drives