Here's my first stab at plugins for max. These was written with the 3.1 SDK. This plugin is called meshfo (Get Info on a mesh). It computes averages for a specified mesh. I am hoping to expand this to average a mesh. Namely, resize the faces to form a more consistent area average. Long way to go but at least it compiled. This is a download of the vc++ source code for meshfo. You need Visual C++ 6.0 (or greater) from Microsoft to compile it.