| AudioBus | Description of an Audio Bus |
| AudioEffect | Default implementation for a VST 3 audio effect |
| Bus | Basic Bus object |
| BusList | List of Buses |
| Component | Default implementation for a VST 3 Component |
| ComponentBase | Base class for VST 3 Component and Edit Controller |
| CPluginFactory | Default Class Factory implementation |
| CPluginView | Plug-In view default implementation |
| EditController | Default implementation for a VST 3 edit controller |
| EditControllerEx1 | Advanced implementation (support IUnitInfo) for a VST 3 edit controller |
| EditorView | View related to an edit controller |
| Entry | Internal structure used for chunk handling |
| EventBus | Description of an Event Bus |
| FileStream | Stream implementation for a file using stdio |
| IPlugProvider | Test Helper |
| MidiIO | |
| NoteExpressionType | Note expression type object |
| NoteExpressionTypeContainer | Collection of note expression types |
| Parameter | Description of a Parameter |
| ParameterContainer | Collection of parameters |
| PresetFile | Handler for a VST 3 Preset File |
| PresetManager | |
| ProgramList | ProgramList element |
| ProgramListWithPitchNames | ProgramListWithPitchNames element |
| RangeNoteExpressionType | Note expression type object representing a custom range |
| RangeParameter | Description of a RangeParameter |
| ReadOnlyBStream | Stream representing a Read-Only subsection of its source stream |
| SingleComponentEffect | Default implementation for a non-distributable Plug-in that combines processor and edit controller in one component |
| StringListParameter | Description of a StringListParameter |
| Unit | Unit element |
| VstAutomationTest | Test Automation |
| VstBusActivationTest | Test Bus Activation |
| VstBusConsistencyTest | Test Bus Consistency |
| VstBusInvalidIndexTest | Test Bus Invalid Index |
| VstCheckAudioBusArrangementTest | Test Check Audio Bus Arrangement |
| VstEditorClassesTest | Test Scan Editor Classes |
| VstFlushParamTest | Test Parameters Flush (no Buffer) |
| VSTGUIEditor | Base class for an edit view using VSTGUI |
| VSTInterAppAudioAppDelegateBase | Base UIApplicationDelegate class |
| VstInvalidStateTransitionTest | Test Invalid State Transition |
| VstKeyswitchTest | Test Keyswitch |
| VstMidiMappingTest | Test MIDI Mapping |
| VstNoteExpressionTest | Test Note Expression |
| VstProcessFormatTest | Test Process Format |
| VstProcessTailTest | Test ProcesTail |
| VstProcessTest | Test Process Test |
| VstProgramInfoTest | Test Scan Programs |
| VstRepeatIdenticalStateTransitionTest | Test Repeat Identical State Transition |
| VstScanBussesTest | Test Scan Buses |
| VstScanParametersTest | Test Scan Parameters |
| VstSilenceFlagsTest | Test Silence Flags |
| VstSilenceProcessingTest | Test Silence Processing |
| VstSpeakerArrangementTest | Test Speaker Arrangement |
| VstSuspendResumeTest | Test Suspend/Resume |
| VstTerminateInitializeTest | Test Terminate/Initialize |
| VstTestBase | Test Helper |
| VstTestEnh | Test Helper |
| VstUnitInfoTest | Test Scan Units |
| VstUnitStructureTest | Test Check Unit Structure |
| VstValidStateTransitionTest | Test Valid State Transition |
| VstVariableBlockSizeTest | Test Variable Block Size |
| XmlRepresentationHelper | Helper for XML Representation creation |