Virtual drives can often be very helpful which is why O&O DiskImage has the option for mounting them from images. Thanks to virtual drives, images don’t have to be restored if you only want to use individual files from the backup. Images can instead be mounted and used while the system’s running.
A special driver from O&O DiskImage will often be needed for mounting images. The program will inform you if this driver is needed and prompts you to install it.