Industrial networks (OT) are not like office IT networks. If you download authtoolzip from a .top site and execute it on the same laptop that connects to your plant floor PLCs, you risk:
Many original QuickDesigner licenses were "hardware-locked" to a parallel port or USB dongle (e.g., SafeNet key). Dongles can be cloned or migrated (legally) with the right hardware. Contact a third-party industrial software reseller—not the defunct OEM—to see if they offer legacy license recovery. qickdesigner v37 authtoolzip top
