ERROR_INVALID_HANDLE (#6)

//______импорт 
 
[DllImport("setupapi.dll", CharSet = CharSet.Auto)]
        internal static extern IntPtr SetupDiGetClassDevs(ref Guid ClassGuid, 
                                                          int Enumerator,
                                                          IntPtr hwndParent,
                                                          int Flags);
 
[DllImport("setupapi.dll", SetLastError = true)]
        internal static extern Int32 SetupDiDestroyDeviceInfoList(IntPtr DeviceInfoSet);
///
 
//_______ GUID CLASSES
 
//Guid guid = new Guid(0xf18a0e88, 0xc30c, 0x11d0, 0x88, 0x15, 0x00, 0xa0, 0xc9, 0x06, 0xbe, 0xd8);//USB_HUB
Guid guid = new Guid(0xA5DCBF10, 0x6530, 0x11D2, 0x90, 0x1F, 0x00, 0xC0, 0x4F, 0xB9, 0x51, 0xED); // USB_DEVICE
//Guid guid = new Guid(0x3abf6f2d, 0x71c4, 0x462a, 0x8a, 0x92, 0x1e, 0x68, 0x61, 0xe6, 0xaf, 0x27); // USB_HOST_CONTROLLER
//Guid guid = new Guid(0x4E623B20, 0xCB14, 0x11D1, 0xB3, 0x31, 0x00, 0xA0, 0xC9, 0x59, 0xBB, 0xD2); //WMI_STD_DATA
 
//________функции
 
internal const int DIGCF_PRESENT = 0x00000002;
internal const int DIGCF_DEVICEINTERFACE = 0x00000010;
 
handle = SetupDiGetClassDevs(ref GuidDevice, 0, IntPtr.Zero, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
                 // [B][COLOR="Red"]handle = 73686672[/COLOR][/B]  (изменяются)
SetupDiDestroyDeviceInfoList(handle);
                 //[B][COLOR="Red"]получаемое значение 0 (FALSE)[/COLOR][/B]
                 //[B][COLOR="Red"]GetLastError(): 6 (ERROR_INVALID_HANDLE)[/COLOR][/B]