@wpjensen said: Hi All, Where does Win32api.so supposed to reside ?? I have the files I am trying to load Rubytoolbar.rb This is the error message I am getting:- Error Loading File D:/Program Files/SketchUp 8/Plugins/rubytoolbar/rubytoolbar.rb no such file to load -- Win32APIError Loading File rubytoolbar.rb no such file to load -- Win32API Using Win7 Ultimate Wayne i have win32api.so in the plugin folder of sketchup, and Rubytoolbar is working normally