[MSDN Library June 1998] Optional Features of ACM Drivers (34.7409579667644%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Windows 95 Device Driver Kit > Design and Implementation Guide > Audio Compression Manager Drivers > About the Audio Compression Manager

[MSDN Library June 1998] Optional Display Driver Functions (29.7791943828529%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Graphics Drivers > Design Guide > Part 2: Display and Video Miniport Drivers > Chapter 5 DDI Support in Display Drivers > Display Driver DDI Functions

[MSDN Library June 1998] Optional Interfaces for the Visual Designer (27.7280395043553%)

MSDN Library Visual Studio 6.0 > Tools and Technologies > ActiveX Designer Programmer's Reference > Chapter 3: Designing and Implementing an ActiveX Designer > Creating the Visual Designer

[MSDN Library June 1998] Optional Graphics Driver Functions (27.5874804075235%)

MSDN Library Visual Studio 6.0 > DDK Documentation > Microsoft Windows NT 4.0 DDK > Graphics Drivers > Design Guide > Part 1: Graphics Drivers > Chapter 3 Supporting the DDI > Graphics Driver Function Support

[MSDN Library June 1998] Optional Ease-of-Use Features (25.3950731807875%)

MSDN Library Visual Studio 6.0 > Specifications > Platforms > Windows Guidelines for Accessible Software Design > The Microsoft Windows Guidelines for Accessible Software Design