A script file is a text file that can add/change functionality of AC3D. Unlike plugins, scripts are generally platform independent (i.e. work on Windows/Mac/Linux AC3D).
To install a script, you will generally just need to copy the file into the scripts folder and restart AC3D.
AC3D is built on top of Tcl/Tk, a powerful industry-standard scripting language.
For more information about Tcl/Tk, see
http://tcl.tk
Any scripts provided here are without warranty. Note that it is possible to cause AC3D to exit from inside a script, and you could also corrupt AC3D internal model data if you don't know what you are doing.
Whan AC3D starts, it looks for *.tcl files in the scripts folder and it will run any scripts it finds there.
Changing/modding AC3D's own script files is possible but we cannot be reponsible for any problems that you may cause.
It is recommended that experimentation with scripts is done on an alternate clean installation of AC3D.