_VPB

Metadatacopy
struct _VPB {
    short Type;/* 0x0  2 */
    short Size;/* 0x2  2 */
    unsigned short Flags;/* 0x4  2 */
    unsigned short VolumeLabelLength;/* 0x6  2 */
    struct _DEVICE_OBJECT* DeviceObject;/* 0x8  4 */
    struct _DEVICE_OBJECT* RealDevice;/* 0xc  4 */
    unsigned long SerialNumber;/* 0x10  4 */
    unsigned long ReferenceCount;/* 0x14  4 */
    unsigned short VolumeLabel[32];/* 0x18  64 */
};
/* source: Windows 2000 RC2 DDK Alpha libcntpr.lib CodeView type records; build 2128 per the DDK's ntverp.h */