Return Code = 19 , Adobe Serialization

Hey all. I downloaded Creative Suite 6 for Windows last year from the University of Maryland Terpware service and need to serialize it. They offer these instructions:

1. Download the 2 files, prov.xml and adobe_prtk
2. Save files to an easy found location
3. Open command prompt: Win – Click start menu, type cmd into search box, right click on cmd and click run as administrator
4. Navigate to file location
5. put in the following command:   adobe_prtk --tool=VolumeSerialize --stream --provfile=prov.xml
6. Your CS6 package should now be active

However, when I input the command it offers this response:

          Copyright 2014 Adobe Systems Incorporated

          All rights reserved.

Return Code = 19

And the Serialization is incomplete. I've tried placing the two files into a folder and moving it to System32, but no luck? How can I rectify this? Thanks.