Why does the driver need to be installed at each start of Thermotrack PC?

Message

Each time you start Thermotrack PC, the following window appears

This is due to access restriction in the program directory.

Solution

Ask your IT departement to grant read/write access in the directory  C:\Program Files (x86)\Proges-Plus\Thermotrack\V8 (or V7 if you have a Version 7).