Hi! Plug-ins requiring a license require you to buy them. Once purchased, you would need an ilok (about $40, might be able to find a little lower price) for the license(s). Without a license, and once past the demo period, the plug-in(s) will cease to load/be available for use. Some plug-ins require an ilok for a temporary/demo authorization, and thus will require the purchase of an ilok as well. One ilok can hold (supposedly) 100 or so licenses. Yes, it sucks, but more and more vendors are using hardware license options. Ilok is not the only player on the block, but for those operating in the Pro Tools world, it is currently the only one. If you plan to work in the Pro Tools world for some time to come, my advice is to bite the bullet now and grab an ilok. Eventually, you will probably want more plugins...thus requiring one. Alternatively: FXpansion's VST2RTAS ver2 wrapper. Works very well, and opens you up to a world of (literally) over 1000 free VST plugins. Add to that the many, many, many purchaseable VST plugins, and you could have just what you need, or want. Without need for an ilok. (some VST plugins require a hardware protection device, such as ilok or another type. With the large number of freebies tho, the chances of absolutely have no choice but to go with a plugin requiring hardware protection are pretty slim. Then, as you save $$$, buy plugins with higher value- and thus requiring hardware protection- and move on.) Unless you are using plugins that require dedicated DSP (such as PT HD Accel, or Powercore, or UAD1, etc), you should be able to find free, or at least very low cost, VST alternatives, which could run with the wrapper. Not all VST plugins work; this is because not every coder follows the VST SDK well enough. The wrapper is not that strict, but still- ya gotta draw a line somewhere! Hope that helps.