The DM-II PRO typically uses Amprobe Datalogging Software (often named Amprobe DMM Manager or ProData depending on the production year). Amprobe is now a brand under Beha-Amprobe (owned by Fluke Corporation).
The Download Suite is designed to automatically check for upgrades to ensure compatibility with newer versions of Windows. Software Downloads - Amprobe amprobe dm-ii pro software download