At Illusion Studio, we develop tools and utilities that will help us in the production pipeline, and we would like to share those tools and utilities with you. We are not responsible for any downloads that do not work for you or cause you damage. Please report any bugs in these scripts to us at Scripts@IllusionStudioInc.com.

Illusion Installer:

We have packed all the scripts together into an easy-to-install .exe file. Download the installer for the option to install any of the scripts to your max root folder. All scripts will be found under the Illusion Script categories.

For older version of 3DS Max, you can download the script pagkage here:
Max 7 & 8
Max 9