Originally, Windows NT users were advised to use the REGEDT32.EXE program instead of the REGEDIT.EXE program. The REGEDIT.EXE program was provided solely for compatibility reasons on Windows NT systems and could crash your system. It is not clear if the current versions of REGEDIT.EXE have the same errors. REGEDT32.EXE uses the MDI window arrangement, while REGEDIT shows the Registry in the same format and uses the same user interface as the Explorer. REGEDT32, displaying the six root classes in their associated windows and the first level expansion of HKEY_LOCAL_MACHINE, is shown in Figure 18.
Figure 18. REGEDT32 Initial Screen
Often a key depending on the current configuration of Windows NT has to be modified. The current configuration is stored in HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion and its subkeys. For Windows 95 systems the path to the current configuration substitutes Windows for Windows NT. Since Windows NT systems have both a Windows and Windows NT key, extreme care must be taken to put the keys in the correct place in the Registry. This place depends from key to key.