Using Microsoft Regedit
The Microsoft Registry Editor (regedit.exe) enables you to view, search for, and change settings in your system registry, which contains information about how your computer runs.
Although you can use Registry Editor to inspect and modify the registry, doing so is not recommended, as making incorrect changes can damage your system.
You might need to use Registry Editor, with assistance from a technical support professional, in order to adjust certain system settings.
Regedit.exe is automatically installed during setup and is stored in same folder as is Windows.
To start Regedit.exe
1. Click Start, and then click Run.
2. Type Regedit, and then click OK.
Related Articles
Windows XP PowerToys - ClearType Tuner
SiSoftware Sandra - Windows System Analyzer - Screen Shots
Creating System Restore Points with XP
Safely Tweak Your XP Registry Using Magic Tweak
Restoring the Windows XP Registry