[MSDN Library April 2000] RegOpenKey (100%)
MSDN Library - April 2000 > Platform SDK > Base Services > Registry > Registry Reference > Registry Functions
[MSDN Library September 1992] RegOpenKey (40.8625730994152%)
Product Documentation > Win32 SDK for Windows NT > Programmer's Reference: API (prelim. ) > API Function Reference > R
[MSDN Library September 1992] RegOpenKey (30.9523809523809%)
Product Documentation > Windows 3.1 SDK > Programmer's Reference Volume 2: Functions > Introduction > OR