Merlin Pocket PC Registry Editor 1.0
the author of this app says:
This is a registry editor that allows the user to manipulate the registry of the PDA directly on the PDA without using the remote registry editor. It allows you to create, delete and modify keys and values, import and export branches, add, remove and retrieve favorites, and search with variables.
- Pocket PC 2000 or 2002 running on MIPS, SHx, or ARM