[MSDN Library June 1998] IUnknown and Interface Inheritance (29.722850678733%)

MSDN Library Visual Studio 6.0 > Platform SDK > COM and ActiveX Object Services > COM > The Component Object Model > COM Objects and Interfaces

[MSDN Library June 1998] IUnknown::QueryInterface (25.46875%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > Multimedia Reference > Multimedia Interfaces

[MSDN Library June 1998] IUnknown::AddRef (24.6354166666667%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > Multimedia Reference > Multimedia Interfaces

[MSDN Library June 1998] IUnknown::Release (24.6354166666667%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > Multimedia Reference > Multimedia Interfaces

[MSDN Library June 1998] IUnknown::QueryInterface (24.2971837944664%)

MSDN Library Visual Studio 6.0 > Specifications > Technologies and Languages > Component Object Model (COM) Specification 0.9 > Chapter 3: Objects and Interfaces > The IUnknown Interface