From the developer: "A comprehensive read-only data recovery solution - ZAR tools extract data from the damaged HDD to another medium (typically an additional HDD), leaving the original disk intact. Working from within Windows, ZAR can recover FAT16/32 and NTFS (including NTFS5) volumes. ZAR supports long and/or national file names and NTFS compression. Typical recoverable damage profiles include volumes accidentally formatted, corrupted by a virus or ill-behaved software, due to power strike or as a side effect of overclocking and so on. There is no need to install the software prior to data loss. During DOS-mode operation, ZAR can aslo scan for and retrieve partitioning information from the damaged disk."