As for all of our other products, this library is installed by our own Spitfire Audio App.
You’ll have to make sure you have the very latest version. When you first start to download the library, you will be asked where you’d like to install it. This is the location where we will store the samples, patches and presets.
VST and AU plugin files will be installed in the default system locations. The AAX plugin will be installed in the chosen installation folder.
Protools users should move it themselves into the location:
Mac HD/Library/Application Support/Avid/Audio/Plug-Ins (Mac)
C:\Program Files\Common Files\Avid\Audio\Plug-Ins (PC)