Drive Snapshot is a disk imaging software program developed by Tom Ehlert Software & Consulting. It allows users to backup, restore, and view the backed up files or directories from any destination. Backed up file is stored in what the program creates as a virtual drive, from where users may retrieve and view data. While backup operation is in progress, users may still work normally on their PCs without interruption. When restoring a drive, using either Windows or DOS, data is restored to its original form. This process, however, is not possible when the drive is in use. Therefore, the restoration process has to be finished for data to be brought to its original state. Drive Snapshot is compatible with PCs run on Windows NT or higher, with disk space of 2MB. It also supports Linux. Execution of this program requires administrative rights.