Installing Kangaroo: Solving Unrecognised Objects

I have followed the directions in the Kangaroo Zip. file. I have copied the Kangaroo.gha and kangaroo.dll under file>special folders>components however whenever I open a script for a tutorial I am presented with the following error message,

"There are three unrecognised objects in the file. Most unrecognised objets are part of a plug-in not installed on this machine. We've tried to harvest as much information as possible about this missing plus-in, but you will have to find an install it before this file will open correctly."

I somewhat understand that you have to locate the file location, however I'm not too sure how to go about this. 

Is anyone able to help me out? 

Thanks,

Ben