[MSDN Library June 1998] Interfaces (100%)

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

[MSDN Library June 1998] Interfaces (47.3636870376001%)

MSDN Library Visual Studio 6.0 > Books > Hardcore Visual Basic > Chapter 3: An Object Way of Basic > Polymorphism and Interfaces

[MSDN Library June 1998] Interfaces (41.7501420858198%)

MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Routing and Remote Access Services > Routing Protocol Interface > About the Routing Protocol Interface

[MSDN Library June 1998] Interfaces (41.0782323825802%)

MSDN Library Visual Studio 6.0 > Platform SDK > Setup and Systems Management Services > Task Scheduler API > Task Scheduler Reference

[MSDN Library June 1998] Interfaces (39.896878483835%)

MSDN Library Visual Studio 6.0 > Platform SDK > Graphics and Multimedia Services > DirectX 5 > DirectX Foundation > DirectSound > DirectSound Reference