Brazil Material Converter
Converts Brazil Advanced Materials <--> Standard Materials. The new version should also handle multi-sub materials - blends - shellacs - double-sideds - top-bottoms - etc. The mass converts of multiple objects doesn't work quite right on larger scenes yet - so save your file if you are going to use them - but converting single materials/material trees in the material editor still seems stable. Check the notes at the top of the script for more info / issues.
Standard Maxsripts (.ms) can be run from the Maxscript button in the utilities panel. To have them always available - save the scripts into your scripts/startup directory.
Macroscripts (.mcr) can be placed in either scripts/startup or UI/Macroscripts - and are then accessed through the 'Customise User Interface' menu in 3dsmax. You can then assign the script to a keystroke - or a button. All macroscripts will appear under the 'Dusk' category in the dropdown.