[DirectX October 2006 Documentation] Automatic Gain Control (65%)

DirectPlay > DirectPlay Voice

[DirectX 6 Programmer's Reference] Automatic Texture Management (26.0680794056753%)

DirectX Foundation > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Textures

[DirectX 7 Programmer's Reference] Automatic Texture Management (26.0680794056753%)

Microsoft DirectX 7.0 > Direct3D > Direct3D Immediate Mode > Direct3D Immediate Mode Essentials > Textures

[DirectX October 2006 Documentation] Automatic Generation of Mipmaps (25.8590290955092%)

DirectX Graphics > Direct3D 9 > Programming Guide > Getting Started > Direct3D Textures

[DirectX October 2006 Documentation] Automatic Texture Management (24.4765406162465%)

DirectX Graphics > Direct3D 9 > Programming Guide > Getting Started > Direct3D Textures