The SolidWorks 2018 Activator SSQ "Error 6" (often referred to as an "Access Violation" or "Activation Library Initialization Error") typically occurs due to permission conflicts, antivirus interference, or leftover license fragments from previous installations. Common Causes & Fixes
The SSQ activator silently depends on:
(or LMTOOLS) and stop any active license servers. If the service won't stop, use the Windows Task Manager to end tasks related to "SolidWorks" or "FLEXnet". Clean License Directories solidworks 2018 activator ssq error 6 new