### - d -

- debugger : IConsole
- defaultAdditionsISO : ISystemProperties
- defaultAudioDriver : ISystemProperties
- defaultHardDiskFormat : ISystemProperties
- defaultMachineFolder : ISystemProperties
- defaultVRDEExtPack : ISystemProperties
- description : IGuestOSType , IProgress , ISnapshot , IMedium , IPerformanceMetric , IExtPackPlugIn , IMachine , IExtPackBase
- devFunction : IPCIAddress
- device : IPCIAddress , IMediumAttachment , IUSBDeviceStateChangedEvent
- deviceFilters : IUSBController
- deviceNumber : IFsObjInfo
- deviceType : IMedium
- DHCPEnabled : IHostNetworkInterface
- DHCPServers : IVirtualBox
- directories : IGuestSession
- directoryName : IDirectory
- discard : IMediumAttachment
- disks : IAppliance
- display : IConsole
- disposition : IFile
- DNSPassDomain : INATEngine
- DNSProxy : INATEngine
- DNSUseHostResolver : INATEngine
- domain : IVRDEServerInfo , IGuestSession
- dragAndDropMode : IMachine , IDragAndDropModeChangedEvent
- DVDDrives : IHost
- DVDImages : IVirtualBox