Hitboxes and Bone Properties
The bone tools allow you to give specific bones artbitrary surface properties, set mass bias and create hitboxes and hitbox groups.
Making Ragdolls in 3ds Max for Source
Making a ragdoll requires you to use the hierarchy tab in the command panel, which may be a new area for less experienced modelers. Watch the video here to get a basic overview of how to make a ragdoll for Source.
Brush Materials and Decals
A beginning to end example of making and exporting brush materials and decals.
A video and sample file to show you how to export textures, brush materials, decals and a simple level from 3ds Max into the Source Game Engine.
Alpha Spec
This utility is a helper function to convert your Specular Level bitmap into the Alpha channel of another bitmap.
Brush Materials have incorrect rotation and scale when using the DirectX Shader
The Wall Worm Material Library Generator originally created DirectX Materials for all materials. But updates to the VMF Exporter changed the way materials are interpretted. Whenever possible, you should not use DirectX Materials.
Export Textures to WAD
Export Bitmaps from your 3ds Max scene to WAD files.
Soundscaper
This utility is a helper function to generate a skeleton Soundscape file based off of soundscape entities in your level.
Material Library Generator
Explanation of how to use the Material Library Generator.