The cablabel S3 Pro software is an email document which contains a download link, license activation key, and installation instructions.
Below is the link to the technical data section for the cablabel S3 Pro. This shows which options come with the lite/pro version of the software. The lite versions comes free with the printer.
Below is the link where you can request a 30 Day demo period of the cablabel S3 Pro software. Step 2 is where to fill out and request a demo code. If for some reason the customer does not get a demo key within 24 hours, please let me know and I will get one for them.