This library adds the support for Arduino and AdMoVeo to Processing.
In the <sketchbook location>, create a folder "libraries", in which then a folder "CreaPro", in which then a folder "library". Copy "creapro.jar" into <sketchbook location>\libraries\CreaPro\library. To find where the <sketchbook location> is, start Processing, check out the menu "File > Preferences"
Restart Processing, check whether you can import the CreaPro library using menu "Sketch > Import Library > CreaPro".