This 3ds Max super simple humanoid bones rig tutorial demonstrates how to build and rig a super-simple bones character. Once the character is rigged, we add some keyframed animation to make him walk across the screen. Using these principles you should be able to create more complex and interesting rigs and animations.
NOTE: This bones rig with walk cycle is now available at no cost by going to the downloads folder. Click here to download super_simple_humanoid.max. Depending on your browser, you can then choose to download, or it may download automatically. This file is in 3ds Max 9 format. You may not resell this rig, but you may use it to learn from or incorporate into your own work.