RegdatXP reads non active NT4.x/W2Kx/XP/Vista registry files like ntuser.dat and Software and compares them to the current Registry. It is an NT version of Regdat and has also Search and Replace functions for the Registry. Registry Backups can be done by command-line arguments. The full version can recover data from corrupt registry files, repair a corrupt file directly in many cases, and remove user passwords from offline Sam files.