[MSDN Library June 1998] HKEY_CLASSES_ROOT (38.7857905982906%)

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 (38.0803571428571%)

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