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Chapter 20. The Windows XP Registry > Using the Windows Registry Editor

Using the Windows Registry Editor

While Windows NT and Windows 2000 allowed you to pick from two different programs (REGEDIT.EXE or REGEDIT32.EXE), Windows XP includes only one editor, the Windows Registry Editor. If you type either command (regedit or regedt32) at the command prompt or the Run dialog box, the same Windows Registry Editor program runs. For convenience, the remainder of this chapter refers to the program as regedit.

Note

If you are using Windows XP 64-Bit Edition, which runs on the Itanium processor, your Registry will contain both 32-bit and 64-bit keys. Most of the 32-bit keys use the same names as their 64-bit corresponding keys. By default, however, when you run REGEDIT.EXE on a 64-bit version of Windows XP, only the 64-bit keys will be displayed. If you want to use an editor that also displays the 32-bit keys, first make sure you don't have the 64-bit of the Registry editor opened. Then run the 32-bit version, by clicking on Start, Run and entering the path %systemroot%\syswow64\regedit.

Does syswow64 ring a bell? Syswow32 (wow stands for Windows on Windows) has been around for some time and is used in a 32-bit environment for running 16-bit Windows programs. Syswow64 provides an environment for 32-bit applications to run on a 64-bit processor.



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