The DOS version has 100% direct hardware control. This is the the "Full UPD" remap function works correctly on internal SATA drives.
When bad sectors are found, Victoria can perform a "Remap". This tells the drive's firmware to replace damaged sectors with healthy ones from a reserved "spare" area on the disk. Download Victoria Hdd Utility 4.3 Full UPD
Do not run Victoria for fun. It issues low-level commands that can erase data. Use it when: The DOS version has 100% direct hardware control
No installer. No DLLs. No registry entries. Download Victoria Hdd Utility 4.3 Full UPD