Workaround To Remove Protexis Licensing Service From Your PC Whenever a user tries to install Corel software products, whether it is a trail version or a paid licensed version, a third-party software application known as PSIService.exe makes an unannounced entry to your system. This PSIService.exe program by Protexis automatically installs a service known as Protexis Licensing service (PLS) or Protexis Licensing Version 2 (V2) into Windows OS. Protexis’s copy protection Digital Rights Management (DRM) and the license management software basically protect an application or software from being illegally copied or pirated and PSIService is a part of it. This is the reason why this service is generally installed by other applications like Coral PaintShop Pro Photo X2, Pro XI (X1) and Pro X. These applications or software use this licensing service to authenticate user and ensure copy protection. Branson Series 8000 Manual.