ClearMedit
"Clears slots in the materials editor with a default standard or raytraced material.
version 1.60 Cleaned some code."
For a max 5 - 4.2 version of this script - please download bspack_r4_r5_v031.zip. Use the original bspack_r42.zip if you want only max 4.2 compatibility.
The only major differences between script packages are slight version compatibility issues - there are no new scripts added between the 3 packages.