Sentinel Rms License Manager 8.6 Download |work| Site
: Since Sentinel RMS is a licensing toolkit used by various software companies (like CSI, Hexagon, or Aveva), the best way to get version 8.6 is through the support or download page of the specific software you are trying to license.
If you are considering moving away from version 8.6, note that Thales has released newer versions (8.7, 8.8, and 9.x). However, upgrading is not trivial: sentinel rms license manager 8.6 download