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Microsoft Resource Kits - Windows 2000 Resource Kit

Regfind.exe  (Windows 2000 Resource Kit)

The Windows 2000 Resource Kits help IT professionals deploy, manage, and support Windows 2000 operating systems.
There are a number of Windows 2000 Resource Kit software tools available for free download from Microsoft. These tools are listed below, and can help you streamline administrative tasks such as managing Active Directory™, administering security features, working with Group Policy and Terminal Services, automating application deployment, and other important jobs.

Regfind.exe
RegFind is a command-line tool that you can use to search the Windows 2000 registry for arbitrary data, key names, or value names. The tool allows you to replace any of these with new values. RegFind has a special flag for finding malformed REG_SZ strings in the registry.