[MSDN Library April 2000] IUnknown (49.7034738542891%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > Windows Multimedia > Multimedia Reference > Multimedia Interfaces

[MSDN Library April 2000] IUnknown (48.0353995299648%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > DirectX > DirectX Media SDK > DirectAnimation > Glossary > DirectShow > C/C++ Reference > DirectShow COM Interfaces

[MSDN Library April 2000] IUnknown (47.4836589306698%)

MSDN Library - April 2000 > Platform SDK > Component Services > COM > COM Fundamentals > Reference > Interfaces

[MSDN Library April 2000] IUnknown (45.4795828437133%)

MSDN Library - April 2000 > Platform SDK > Graphics and Multimedia Services > DirectX > DirectX Media SDK > DirectAnimation > Glossary > DirectShow > Glossary > DirectX Transform > C++/COM Reference > Interfaces

[MSDN Library April 2000] IUnknown (42.6309121621622%)

MSDN Library - April 2000 > Partial Books > Active Visual J++ > Chapter 6: Understanding COM and Java > The Fundamentals of COM > Interface and Class IDs