Exclusive: Rainbow Sentinel System Driver 73 2 Windows 10 Link

In the 1990s and 2000s, (later acquired by SafeNet, then Gemalto, now part of Thales Group) produced hardware keys called Sentinel dongles. These USB or parallel-port devices stored licenses for expensive software like CAD tools, medical imaging systems, and industrial control programs.

A lightweight installer if you only need the local driver (no server components). Download from Thales Support Portal Legacy Version 7.3.2 rainbow sentinel system driver 73 2 windows 10 link