[MSDN Library June 1998] HKEY_CLASSES_ROOT (100%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT Workstation 4.0 Resource Kit > Chapter 23 - Overview of the Windows NT Registry
[MSDN Library June 1998] HKEY_CLASSES_ROOT (72.3462301587302%)
MSDN Library Visual Studio 6.0 > Windows Resource Kits > Windows NT 3.51 Resource Kit > Windows NT Resource Kit Volume 1: Resource Guide > Overview of the Windows NT Registry