The following blog posts provide detailed, step-by-step guidance for activating SOLIDWORKS 2015:
The activator reads the sw_d.lic file. It replaces the legitimate serial (e.g., 0001 1234 5678 91AB ) with a "blacklisted" yet mathematically valid key. For 2015, common fake serials included 0001 0001 0736 0361 (for SolidWorks Standard) and 9916 5719 6885 6170 (for Professional).