By downloading any of the files below, you certify that you have read and agree to the conditions outlined in the DISCLAIMER (see menu) and that you agree to abide by the conditions of the end-user license agreement (EULA, also in the menu). Specifically, the software is to be used 'as is' and without modification, you will not distribute the software to other parties (you should direct them to this website, instead), you will not attempt to reverse engineer or extract any part of the software or accompanying data files, and no results beyond reporting the characterization of a single unknown can be published without the express, written consent of the developers.
Windows users should download the .zip file. All others can download the .jar file, directly.
Different downloads are required because MS Windows (Internet Explorer, anyway) automatically changes the ".jar" extension to ".zip", and since MS Windows hides extensions by default, it is unnecessarily complicated to explain to users what is going on and how to fix it. If anyone knows the best way to address this and achieve a single download choice, please contact the author.