Somewhere in one of the SU Bridge topic threads I posted a SketchupExtension script example that works for installing the SUB files in a common install directory. ADD: OK, found it here: Re: Notepad++ SU8 Ruby API Autocomplete .. and the d/l link is: bridge_ext.rb This very important especially if you are a developer, and have several side-by-side SketchUp installs of various versions / MR levels. It lets the IDE/Editor have a single valid path to SUB.exe, no matter which SketchUp version you are testing your code on.