//0x4 bytes (sizeof)
enum _FSINFOCLASS
{
FileFsVolumeInformation = 1,
FileFsLabelInformation = 2,
FileFsSizeInformation = 3,
FileFsDeviceInformation = 4,
FileFsAttributeInformation = 5,
FileFsControlInformation = 6,
FileFsFullSizeInformation = 7,
FileFsObjectIdInformation = 8,
FileFsDriverPathInformation = 9,
FileFsVolumeFlagsInformation = 10,
FileFsMaximumInformation = 11
};