[MSDN Library June 1998] Extensibility (30.5151515151515%)

MSDN Library Visual Studio 6.0 > Specifications > Platforms > Telephony Application Programming Interface (TAPI) > Chapter 6 > 6.1 Data Types

[MSDN Library June 1998] Extensibility Model Objects and Structure (25.6624108130564%)

MSDN Library Visual Studio 6.0 > Visual Basic Documentation > Using Visual Basic > Component Tools Guide (Pro, Enterprise only) > Extending the Visual Basic Environment with Add-Ins

[MSDN Library June 1998] Extensibility with Events (24.8776304713805%)

MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Visual Studio Development Environments > Visual InterDev/Visual J++ Environment > Environment Extensibility > Extensibility Concepts and Tasks

[MSDN Library June 1998] Extensibility in Visual J++ (24.3909932659933%)

MSDN Library Visual Studio 6.0 > Visual J++ Documentation > Visual J++ Reference

[MSDN Library June 1998] Extensibility with Windows (24.1200547138047%)

MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Visual Studio Development Environments > Visual InterDev/Visual J++ Environment > Environment Extensibility > Extensibility Concepts and Tasks