Instead of risky cracked versions, Native Instruments offers free, stable options that are fully supported:
A keygen (key generator) from the R2R folder is used, often requiring users to turn off their antivirus software to prevent the keygen from being removed.
A free version of Kontakt that runs all NI instruments and thousands of third-party developer libraries.
A free bundle that includes Kontakt Player, over 2,000 sounds, and several instruments.
third-party libraries with the free Kontakt Player? Understand the security risks of cracked software? Kontakt 8 Player - Native Instruments