If you try to run Wall Worm with 3ds Max 9, you may get errors where a script error occurs and the error shows a bunch of mangled code.
This error was introduced when I added the native MAXScript SMD Exporter into WW and effects only people running Wall Worm in Max 9.
The solution is that you need to install 3ds Max 9 Service Pack 2 (http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=9593622&linkID=9241178).
As an added piece of info, 3ds Max 9 users also need to have the Avguard MAXScript Extension Package (http://www.scriptspot.com/3ds-max/plugins/avguard-maxscript-extension-package).
I have updated the docs to reflect this information (http://dev.wallworm.com/document/47/wwmt_requirements.html).