The pop-up will note the number of days they can continue to use PROFIS Anchor until mandatory registration is required. Existing users do not have to register in order to update to version 2.5.2, but they will have to register in order to continue using PROFIS Anchor. A link to register via Hilti Online will be provided. The pop-up will ask them to consider registering when updating to version 2.5.2. Beginning with the launch of PROFIS Anchor 2.5.2, all existing PROFIS Anchor users will receive a pop-up each time they open PROFIS Anchor. PROFIS Anchor users who have installed a previous version of the software can update to version 2.5.2, but they will also be required to register and input the license key they receive in order to continue using PROFIS Anchor. The license key is required to install PROFIS Anchor. Frequently asked questions about PROFIS Anchor registration. Find out how to use Hilti PROFIS design software for firestop, rebar, modular support systems, anchor fastenings, layout points and concrete scan data.