typedef struct _GUID {

    public const int CERTSRV_E_SUBJECT_DIRECTORY_GUID_REQUIRED = unchecked((int)0x8009480E);

    Public Const CERTSRV_E_SUBJECT_DIRECTORY_GUID_REQUIRED As Integer = CInt(&H8009480eUI)

Structure _GUID

     _guid = guid;

     public Guid _guid;

    ''' <param name="SubGroupOfPowerSettingGuid">The subgroup of power settings. Use NO_SUBGROUP_GUID to refer to the default power scheme.</param>

TraceGuidRegistration (http://windowssdk.msdn.microsoft.com/library/default.asp?url=/library/en-us/etw/etw/trace_guid_registration.asp)

TraceGuidRegistration (http://windowssdk.msdn.microsoft.com/library/default.asp?url=/library/en-us/etw/etw/trace_guid_registration.asp)

        DS_SCHEMA_GUID_MAP[] guidMapResult = parseGuids(guidMap, myGuids.Length, true);

    internal struct DS_SCHEMA_GUID_MAP

    private static DS_SCHEMA_GUID_MAP[] parseGuids(IntPtr guidMap, int numGuids, bool freePointer)

        int typeSize = Marshal.SizeOf(typeof(DS_SCHEMA_GUID_MAP));

        DS_SCHEMA_GUID_MAP[] schemaMap = new DS_SCHEMA_GUID_MAP[numGuids];

        schemaMap[i] = (DS_SCHEMA_GUID_MAP)Marshal.PtrToStructure(

                typeof(DS_SCHEMA_GUID_MAP)

    public static Guid BUS1394_CLASS_GUID = new Guid("6BDD1FC1-810F-11d0-BEC7-08002BE2092F");

    public static Guid MOUNTDEV_MOUNTED_DEVICE_GUID = new Guid("53F5630D-B6BF-11D0-94F2-00A0C91EFB8B");

    public static PropertyKey PKEY_Device_ClassGuid = new PropertyKey(0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 10);    // DEVPROP_TYPE_GUID

    public static PropertyKey PKEY_Device_BusTypeGuid = new PropertyKey(0xa45c254e, 0xdf1c, 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 21);    // DEVPROP_TYPE_GUID

    public static PropertyKey PKEY_DeviceInterface_ClassGuid = new PropertyKey(0x026e516e, 0xb814, 0x414b, 0x83, 0xcd, 0x85, 0x6d, 0x6f, 0xef, 0x48, 0x22, 4); // DEVPROP_TYPE_GUID

    public static PropertyKey PKEY_AudioEndpoint_GUID = new PropertyKey(  0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23, 0xe0, 0xc0, 0xff, 0xee, 0x7f, 0x0e, 4);

    public static PropertyKey WPD_MEDIA_GUID = new PropertyKey(0x2ED8BA05, 0x0AD3, 0x42DC, 0xB0, 0xD0, 0xBC, 0x95, 0xAC, 0x39, 0x6A, 0xC8, 38);

    public const int NIF_GUID           = 0x00000020;

    public const int NIF_GUID           = 0x00000020;

        public const int ERROR_WMI_GUID_NOT_FOUND = 4200;

        public const int ERROR_WMI_GUID_DISCONNECTED = 4207;

        public const int ERROR_DS_OBJ_GUID_EXISTS = 8361;

        public const int ERROR_DS_DUP_SCHEMA_ID_GUID = 8381;

        public const int ERROR_DS_SRC_GUID_MISMATCH = 8488;

        public const int CERTSRV_E_SUBJECT_DIRECTORY_GUID_REQUIRED = (int)(0x8009480E - 0x100000000);