If you searched for it just to learn sound design, Use the standard Kontakt Full "Instrument Editor." It is powerful enough to create professional-level patches without the encryption headaches.
Demystifying KLC: Is a Free Download of the Kontakt Library Creator Possible? Kontakt Library Creator Klc Free Download
Want to build your own Kontakt instruments? We explore the official Kontakt Library Creator tool, the risks of "free downloads," and the legitimate alternatives for scripters and sound designers. If you’ve ever dreamed of building your own professional-sounding instrument for Native Instruments Kontakt, you’ve probably stumbled upon the acronym KLC —the Kontakt Library Creator. If you searched for it just to learn