Hey man, All fair questions. So, Kontakt is essentially just a fancy sampler-- one that can play a few different audio file types, including some that are proprietary and exclusive to Native Instruments. Native is the company that makes Kontakt, Komplete, and Reaktor. Their software caught on with the market and there are now hundreds of plugin companies that make their virtual instruments exclusively for use within one of these three sample players. The world of plugins is much like any other software medium and can actually be relatively complicated and can take some time & experience to understand. Hence the gentlemen's comment above. But yes, to use any of Native's sample players you will need to (as you will find some other plugin companies also do, some fortunately not) install their "Access" (just a glorified installer, really) as well as the sample players(s) themselves, and then install the proper instrument files from any third party developers who have made their instruments available in Kontakt / Komplete / Reaktor. Breaking it down real fast, there are: VST2 & VST3 = audio effects plugins (.dll or .vst3) stored in one if those respective folders that your DAW should be able to scan and therefore include in it's plugin folder for you to use. VSTi = virtual instrument plugins to be kept in the VST2 folder. Will show up 8j your DAW's instrument plugin folder for you to use. Kontakt / Reaktor = generally third party of Native Instrument virtual instrument plugins exclusively for use in a Native sample player. These files need to be installed into a specific folder that the player can access in order to use. Unlike VSTi plugins, you will open the sampler itself from your instruments folder and use Kontakt or whatever player it calls for to then open the virtual instrument. This is kinda a rough rundown just so you kinda get how this stuff works, but you'll figure it out. I personally have fun finding interesting free plugins with which to screw up some audio for (hopefully) the better. :). The gentleman above is right about one other thing though: use the great majority of your time recording, arranging, and mixing your music. Accumulating free software can become a sort of junky thrill akin to hoarding, and you can lose sight of what it is about that software itself that makes you happy in the first place. So, be cautious, but have fun, my friend. Don't be daunted-- even the greatest producers started not knowing anything. Good luck to ya.