RegScanner - Free utility that allows you to scan/search the Registry, find the desired Registry values that match to the specified search criteria, and display them in one list.
Registry Workshop - Registry Workshop is an advanced registry editor.
Windows Registry Recovery - Windows Registry Recovery is the perfect tool for MS Windows that enables you to recover data from crashed machine registries with great ease.
RegCool - RegCool is an advanced registry editor.
Registrar Registry Manager - Advanced Registry Manager for Windows
Small Registry Editor - Small Registry Editor for Windows provides you the ability to make changes to the registry.