When Opening Scene there is a startup script error.
Anvil embeds reference to a script in your 3ds Max scripts folder. If that file is missing, there can be an error.
Anvil embeds some scripts for scene startup to protect displacements from being invalidated via improper manipulation. Older versions of Anvil referenced a file that could cause an error if missing.
Unknown Bitmap Filetypes Crash VMF Exporter
Do not use bitmap filetypes that Max doesn't know how to read.
Using unknown bitmap types on world geometry and displacements will crash the VMF Exporter. This currently happens if using VTFs in materials in 3ds Max 2013 since there is no VTF plugin yet.
Texture and VTex Errors
Topics pertaining to errors compiling VTF Textures from bitmaps in Source.
Export Multiple Texture Skins
You can give your model multiple skins (textures) so that the same mesh can look differently in different uses.
WWMT Textures
Information on exporting Wall Worm Model Tools WWMT textures.
Convert Scene to Model
Instructions on converting a scene into a model or clustering multiple model props into single models.
Rotating Textures
Instructions on creating VMTs that animate the texture rotation.
Sky Writer
Sky writer allows you to render your 3ds Max scene straight into the Source Game Engine as a HDR 2D sky texture (also known as a cubemap).