RegSnap

RegSnap helps you find and analyze changes made to the System Registry. You can view, explore and compare saved registry snapshots and find which keys were modified, deleted, or added. You can also analyze other sensitive system parts, such as a list of files in system directories. RegSnap generates HTML based reports and undo/redo .reg files. RegSnap can export and import .REG files, it has easy to use REGEDIT-alike user interface.