diff --git a/modules/juce_audio_processors/format_types/juce_VSTInterface.h b/modules/juce_audio_processors/format_types/juce_VSTInterface.h
new file mode 100644
index 0000000000..58179be1a1
--- /dev/null
+++ b/modules/juce_audio_processors/format_types/juce_VSTInterface.h
@@ -0,0 +1,532 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2017 - ROLI Ltd.
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 5 End-User License
+   Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
+   27th April 2017).
+
+   End User License Agreement: www.juce.com/juce-5-licence
+   Privacy Policy: www.juce.com/juce-5-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+#ifndef JUCE_VSTINTERFACE_H_INCLUDED
+#define JUCE_VSTINTERFACE_H_INCLUDED
+
+using namespace juce;
+
+#if JUCE_MSVC
+ #define VSTINTERFACECALL __cdecl
+ #pragma pack(push)
+ #pragma pack(8)
+#elif JUCE_MAC || JUCE_IOS
+ #define VSTINTERFACECALL
+ #if JUCE_64BIT
+  #pragma options align=power
+ #else
+  #pragma options align=mac68k
+ #endif
+#else
+ #define VSTINTERFACECALL
+ #pragma pack(push, 8)
+#endif
+
+const int32 juceVstInterfaceVersion = 2400;
+const int32 juceVstInterfaceIdentifier = 0x56737450;    // The "magic" identifier in the SDK is 'VstP'.
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstEffectInterface
+{
+    int32 interfaceIdentifier;
+    pointer_sized_int (VSTINTERFACECALL* dispatchFunction)          (VstEffectInterface*, int32 op, int32 index, pointer_sized_int value, void* ptr, float opt);
+    void              (VSTINTERFACECALL* processAudioFunction)      (VstEffectInterface*, float** inputs, float** outputs, int32 numSamples);
+    void              (VSTINTERFACECALL* setParameterValueFunction) (VstEffectInterface*, int32 parameterIndex, float value);
+    float             (VSTINTERFACECALL* getParameterValueFunction) (VstEffectInterface*, int32 parameterIndex);
+    int32 numPrograms;
+    int32 numParameters;
+    int32 numInputChannels;
+    int32 numOutputChannels;
+    int32 flags;
+    pointer_sized_int hostSpace1;
+    pointer_sized_int hostSpace2;
+    int32 latency;
+    int32 deprecated1;
+    int32 deprecated2;
+    float deprecated3;
+    void* effectPointer;
+    void* userPointer;
+    int32 plugInIdentifier;
+    int32 plugInVersion;
+    void (VSTINTERFACECALL* processAudioInplaceFunction)       (VstEffectInterface*, float**  inputs, float**  outputs, int32 numSamples);
+    void (VSTINTERFACECALL* processDoubleAudioInplaceFunction) (VstEffectInterface*, double** inputs, double** outputs, int32 numSamples);
+    char emptySpace[56];
+};
+
+typedef pointer_sized_int (VSTINTERFACECALL* VstHostCallback) (VstEffectInterface*, int32 op, int32 index, pointer_sized_int value, void* ptr, float opt);
+
+enum VstEffectInterfaceFlags
+{
+    vstEffectFlagHasEditor          = 1,
+    vstEffectFlagInplaceAudio       = 16,
+    vstEffectFlagDataInChunks       = 32,
+    vstEffectFlagIsSynth            = 256,
+    vstEffectFlagInplaceDoubleAudio = 4096
+};
+
+//==============================================================================
+enum VstHostToPlugInOpcodes
+{
+    plugInOpcodeOpen,
+    plugInOpcodeClose,
+    plugInOpcodeSetCurrentProgram,
+    plugInOpcodeGetCurrentProgram,
+    plugInOpcodeSetCurrentProgramName,
+    plugInOpcodeGetCurrentProgramName,
+    plugInOpcodeGetParameterLabel,
+    plugInOpcodeGetParameterText,
+    plugInOpcodeGetParameterName,
+    plugInOpcodeSetSampleRate = plugInOpcodeGetParameterName + 2,
+    plugInOpcodeSetBlockSize,
+    plugInOpcodeResumeSuspend,
+    plugInOpcodeGetEditorBounds,
+    plugInOpcodeOpenEditor,
+    plugInOpcodeCloseEditor,
+    plugInOpcodeDrawEditor,
+    plugInOpcodeGetMouse,
+    plugInOpcodeEditorIdle = plugInOpcodeGetMouse + 2,
+    plugInOpcodeeffEditorTop,
+    plugInOpcodeSleepEditor,
+    plugInOpcodeIdentify,
+    plugInOpcodeGetData,
+    plugInOpcodeSetData,
+    plugInOpcodePreAudioProcessingEvents,
+    plugInOpcodeIsParameterAutomatable,
+    plugInOpcodeParameterValueForText,
+    plugInOpcodeGetProgramName = plugInOpcodeParameterValueForText + 2,
+    plugInOpcodeConnectInput = plugInOpcodeGetProgramName + 2,
+    plugInOpcodeConnectOutput,
+    plugInOpcodeGetInputPinProperties,
+    plugInOpcodeGetOutputPinProperties,
+    plugInOpcodeGetPlugInCategory,
+    plugInOpcodeSetSpeakerConfiguration = plugInOpcodeGetPlugInCategory + 7,
+    plugInOpcodeSetBypass = plugInOpcodeSetSpeakerConfiguration + 2,
+    plugInOpcodeGetPlugInName,
+    plugInOpcodeGetManufacturerName = plugInOpcodeGetPlugInName + 2,
+    plugInOpcodeGetManufacturerProductName,
+    plugInOpcodeGetManufacturerVersion,
+    plugInOpcodeManufacturerSpecific,
+    plugInOpcodeCanPlugInDo,
+    plugInOpcodeGetTailSize,
+    plugInOpcodeIdle,
+    plugInOpcodeKeyboardFocusRequired = plugInOpcodeIdle + 4,
+    plugInOpcodeGetVstInterfaceVersion,
+    plugInOpcodeGetCurrentMidiProgram = plugInOpcodeGetVstInterfaceVersion + 5,
+    plugInOpcodeGetSpeakerArrangement = plugInOpcodeGetCurrentMidiProgram + 6,
+    plugInOpcodeNextPlugInUniqueID,
+    plugInOpcodeStartProcess,
+    plugInOpcodeStopProcess,
+    plugInOpcodeSetNumberOfSamplesToProcess,
+    plugInOpcodeSetSampleFloatType = plugInOpcodeSetNumberOfSamplesToProcess + 4,
+    pluginOpcodeGetNumMidiInputChannels,
+    pluginOpcodeGetNumMidiOutputChannels,
+    plugInOpcodeMaximum = pluginOpcodeGetNumMidiOutputChannels
+};
+
+
+enum VstPlugInToHostOpcodes
+{
+    hostOpcodeParameterChanged,
+    hostOpcodeVstVersion,
+    hostOpcodeCurrentId,
+    hostOpcodeIdle,
+    hostOpcodePinConnected,
+    hostOpcodePlugInWantsMidi = hostOpcodePinConnected + 2,
+    hostOpcodeGetTimingInfo,
+    hostOpcodePreAudioProcessingEvents,
+    hostOpcodeSetTime,
+    hostOpcodeTempoAt,
+    hostOpcodeGetNumberOfAutomatableParameters,
+    hostOpcodeGetParameterInterval,
+    hostOpcodeIOModified,
+    hostOpcodeNeedsIdle,
+    hostOpcodeWindowSize,
+    hostOpcodeGetSampleRate,
+    hostOpcodeGetBlockSize,
+    hostOpcodeGetInputLatency,
+    hostOpcodeGetOutputLatency,
+    hostOpcodeGetPreviousPlugIn,
+    hostOpcodeGetNextPlugIn,
+    hostOpcodeWillReplace,
+    hostOpcodeGetCurrentAudioProcessingLevel,
+    hostOpcodeGetAutomationState,
+    hostOpcodeOfflineStart,
+    hostOpcodeOfflineReadSource,
+    hostOpcodeOfflineWrite,
+    hostOpcodeOfflineGetCurrentPass,
+    hostOpcodeOfflineGetCurrentMetaPass,
+    hostOpcodeSetOutputSampleRate,
+    hostOpcodeGetOutputSpeakerConfiguration,
+    hostOpcodeGetManufacturerName,
+    hostOpcodeGetProductName,
+    hostOpcodeGetManufacturerVersion,
+    hostOpcodeManufacturerSpecific,
+    hostOpcodeSetIcon,
+    hostOpcodeCanHostDo,
+    hostOpcodeGetLanguage,
+    hostOpcodeOpenEditorWindow,
+    hostOpcodeCloseEditorWindow,
+    hostOpcodeGetDirectory,
+    hostOpcodeUpdateView,
+    hostOpcodeParameterChangeGestureBegin,
+    hostOpcodeParameterChangeGestureEnd,
+};
+
+//==============================================================================
+enum VstProcessingSampleType
+{
+    vstProcessingSampleTypeFloat,
+    vstProcessingSampleTypeDouble
+};
+
+//==============================================================================
+// These names must be identical to the Steinberg SDK so JUCE users can set
+// exactly what they want.
+enum VstPlugInCategory
+{
+    kPlugCategUnknown,
+    kPlugCategEffect,
+    kPlugCategSynth,
+    kPlugCategAnalysis,
+    kPlugCategMastering,
+    kPlugCategSpacializer,
+    kPlugCategRoomFx,
+    kPlugSurroundFx,
+    kPlugCategRestoration,
+    kPlugCategOfflineProcess,
+    kPlugCategShell,
+    kPlugCategGenerator
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstEditorBounds
+{
+    int16 upper;
+    int16 leftmost;
+    int16 lower;
+    int16 rightmost;
+};
+
+//==============================================================================
+enum VstMaxStringLengths
+{
+    vstMaxNameLength                     = 64,
+    vstMaxParameterOrPinLabelLength      = 64,
+    vstMaxParameterOrPinShortLabelLength = 8,
+    vstMaxCategoryLength                 = 24,
+    vstMaxManufacturerStringLength       = 64,
+    vstMaxPlugInNameStringLength         = 64
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstPinInfo
+{
+    char text[vstMaxParameterOrPinLabelLength];
+    int32 flags;
+    int32 configurationType;
+    char shortText[vstMaxParameterOrPinShortLabelLength];
+    char unused[48];
+};
+
+enum VstPinInfoFlags
+{
+    vstPinInfoFlagIsActive = 1,
+    vstPinInfoFlagIsStereo = 2,
+    vstPinInfoFlagValid    = 4
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstEvent
+{
+    int32 type;
+    int32 size;
+    int32 sampleOffset;
+    int32 flags;
+    char content[16];
+};
+
+enum VstEventTypes
+{
+    vstMidiEventType  = 1,
+    vstSysExEventType = 6
+};
+
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstEventBlock
+{
+    int32 numberOfEvents;
+    pointer_sized_int future;
+    VstEvent* events[2];
+};
+
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstMidiEvent
+{
+    int32 type;
+    int32 size;
+    int32 sampleOffset;
+    int32 flags;
+    int32 noteSampleLength;
+    int32 noteSampleOffset;
+    char midiData[4];
+    char tuning;
+    char noteVelocityOff;
+    char future1;
+    char future2;
+};
+
+enum VstMidiEventFlags
+{
+    vstMidiEventIsRealtime = 1
+};
+
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstSysExEvent
+{
+    int32 type;
+    int32 size;
+    int32 offsetSamples;
+    int32 flags;
+    int32 sysExDumpSize;
+    pointer_sized_int future1;
+    char* sysExDump;
+    pointer_sized_int future2;
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstTimingInformation
+{
+    double samplePosition;
+    double sampleRate;
+    double systemTimeNanoseconds;
+    double musicalPosition;
+    double tempoBPM;
+    double lastBarPosition;
+    double loopStartPosition;
+    double loopEndPosition;
+    int32 timeSignatureNumerator;
+    int32 timeSignatureDenominator;
+    int32 smpteOffset;
+    int32 smpteRate;
+    int32 samplesToNearestClock;
+    int32 flags;
+};
+
+enum VstTimingInformationFlags
+{
+    vstTimingInfoFlagTransportChanged          = 1,
+    vstTimingInfoFlagCurrentlyPlaying          = 2,
+    vstTimingInfoFlagLoopActive                = 4,
+    vstTimingInfoFlagCurrentlyRecording        = 8,
+    vstTimingInfoFlagAutomationWriteModeActive = 64,
+    vstTimingInfoFlagAutomationReadModeActive  = 128,
+    vstTimingInfoFlagNanosecondsValid          = 256,
+    vstTimingInfoFlagMusicalPositionValid      = 512,
+    vstTimingInfoFlagTempoValid                = 1024,
+    vstTimingInfoFlagLastBarPositionValid      = 2048,
+    vstTimingInfoFlagLoopPositionValid         = 4096,
+    vstTimingInfoFlagTimeSignatureValid        = 8192,
+    vstTimingInfoFlagSmpteValid                = 16384,
+    vstTimingInfoFlagNearestClockValid         = 32768
+};
+
+//==============================================================================
+enum VstSmpteRates
+{
+    vstSmpteRateFps24,
+    vstSmpteRateFps25,
+    vstSmpteRateFps2997,
+    vstSmpteRateFps30,
+    vstSmpteRateFps2997drop,
+    vstSmpteRateFps30drop,
+
+    vstSmpteRate16mmFilm,
+    vstSmpteRate35mmFilm,
+
+    vstSmpteRateFps239 = vstSmpteRate35mmFilm + 3,
+    vstSmpteRateFps249 ,
+    vstSmpteRateFps599,
+    vstSmpteRateFps60
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstIndividualSpeakerInfo
+{
+    float azimuthalAngle;
+    float elevationAngle;
+    float radius;
+    float reserved;
+    char label[vstMaxNameLength];
+    int32 type;
+    char unused[28];
+};
+
+enum VstIndividualSpeakerType
+{
+    vstIndividualSpeakerTypeUndefined = 0x7fffffff,
+    vstIndividualSpeakerTypeMono = 0,
+    vstIndividualSpeakerTypeLeft,
+    vstIndividualSpeakerTypeRight,
+    vstIndividualSpeakerTypeCentre,
+    vstIndividualSpeakerTypeLFE,
+    vstIndividualSpeakerTypeLeftSurround,
+    vstIndividualSpeakerTypeRightSurround,
+    vstIndividualSpeakerTypeLeftCentre,
+    vstIndividualSpeakerTypeRightCentre,
+    vstIndividualSpeakerTypeSurround,
+    vstIndividualSpeakerTypeCentreSurround = vstIndividualSpeakerTypeSurround,
+    vstIndividualSpeakerTypeLeftRearSurround,
+    vstIndividualSpeakerTypeRightRearSurround,
+    vstIndividualSpeakerTypeTopMiddle,
+    vstIndividualSpeakerTypeTopFrontLeft,
+    vstIndividualSpeakerTypeTopFrontCentre,
+    vstIndividualSpeakerTypeTopFrontRight,
+    vstIndividualSpeakerTypeTopRearLeft,
+    vstIndividualSpeakerTypeTopRearCentre,
+    vstIndividualSpeakerTypeTopRearRight,
+    vstIndividualSpeakerTypeLFE2
+};
+
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct VstSpeakerConfiguration
+{
+    int32 type;
+    int32 numberOfChannels;
+    VstIndividualSpeakerInfo speakers[8];
+};
+
+enum VstSpeakerConfigurationType
+{
+    vstSpeakerConfigTypeUser  = -2,
+    vstSpeakerConfigTypeEmpty = -1,
+    vstSpeakerConfigTypeMono  = 0,
+    vstSpeakerConfigTypeLR,
+    vstSpeakerConfigTypeLsRs,
+    vstSpeakerConfigTypeLcRc,
+    vstSpeakerConfigTypeSlSr,
+    vstSpeakerConfigTypeCLfe,
+    vstSpeakerConfigTypeLRC,
+    vstSpeakerConfigTypeLRS,
+    vstSpeakerConfigTypeLRCLfe,
+    vstSpeakerConfigTypeLRLfeS,
+    vstSpeakerConfigTypeLRCS,
+    vstSpeakerConfigTypeLRLsRs,
+    vstSpeakerConfigTypeLRCLfeS,
+    vstSpeakerConfigTypeLRLfeLsRs,
+    vstSpeakerConfigTypeLRCLsRs,
+    vstSpeakerConfigTypeLRCLfeLsRs,
+    vstSpeakerConfigTypeLRCLsRsCs,
+    vstSpeakerConfigTypeLRLsRsSlSr,
+    vstSpeakerConfigTypeLRCLfeLsRsCs,
+    vstSpeakerConfigTypeLRLfeLsRsSlSr,
+    vstSpeakerConfigTypeLRCLsRsLcRc,
+    vstSpeakerConfigTypeLRCLsRsSlSr,
+    vstSpeakerConfigTypeLRCLfeLsRsLcRc,
+    vstSpeakerConfigTypeLRCLfeLsRsSlSr,
+    vstSpeakerConfigTypeLRCLsRsLcRcCs,
+    vstSpeakerConfigTypeLRCLsRsCsSlSr,
+    vstSpeakerConfigTypeLRCLfeLsRsLcRcCs,
+    vstSpeakerConfigTypeLRCLfeLsRsCsSlSr,
+    vstSpeakerConfigTypeLRCLfeLsRsTflTfcTfrTrlTrrLfe2
+};
+
+#if JUCE_BIG_ENDIAN
+ #define JUCE_MULTICHAR_CONSTANT(a, b, c, d) (a | (((uint32) b) << 8) | (((uint32) c) << 16) | (((uint32) d) << 24))
+#else
+ #define JUCE_MULTICHAR_CONSTANT(a, b, c, d) (d | (((uint32) c) << 8) | (((uint32) b) << 16) | (((uint32) a) << 24))
+#endif
+
+enum PresonusExtensionConstants
+{
+    presonusVendorID                = JUCE_MULTICHAR_CONSTANT ('P', 'r', 'e', 'S'),
+    presonusSetContentScaleFactor   = JUCE_MULTICHAR_CONSTANT ('A', 'e', 'C', 's')
+};
+
+//==============================================================================
+/** Structure used for VSTs
+
+    @tags{Audio}
+*/
+struct vst2FxBank
+{
+    int32 magic1;
+    int32 size;
+    int32 magic2;
+    int32 version1;
+    int32 fxID;
+    int32 version2;
+    int32 elements;
+    int32 current;
+    char shouldBeZero[124];
+    int32 chunkSize;
+    char chunk[1];
+};
+
+#if JUCE_MSVC
+ #pragma pack(pop)
+#elif JUCE_MAC || JUCE_IOS
+ #pragma options align=reset
+#else
+ #pragma pack(pop)
+#endif
+
+#endif // JUCE_VSTINTERFACE_H_INCLUDED