Browse function lets you can scroll through the registry to select a starting point for your search/replace. You can create and edit keys, values, & data, delete keys and values (after confirmation), and undo the last changes made. Output functions let you preview the changes that would be made by a replace in advance of actually making the replace. Replace preview can also be set up to let you interactively select specific replaces to be made in advance of the operation. This same possible is available for the undo function - you can reverse all or some of the last change made. Regular expression search/replace using a grep-like syntax is possible - no other utility does this. The program can also use DOS environment variables in search/replaces.
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