In the Browser, navigate to the Plug-in database > Installed > Generators > VST.Click the Plug-in database symbol in the FL Studio Browser.MIDI out - AU does not support MIDI out to other plugins.Sharing projects - If you are sharing projects with Windows users, you must use the VST versions of plugins since Audio Units are not available on Windows.Info for Mac users: FL Studio 20 introduces the ability to use Audio Units (AU) on Mac computers however, we recommend using VST whenever possible for the following reasons: Note: If you are using FL Studio 12 (or earlier), read this article. Note: some NI products can be inserted both as instrument or effect plug-in (e.g. RAUM, GUITAR RIG, etc.) in an effect insert slot and routing an audio signal to the corresponding Mixer insert track. MASSIVE X, KONTAKT, etc.) in a plug-in channel. This article explains how to insert Native Instruments plug-ins in FL Studio 20, including: