_GUID

headersMetadatacopy
struct _GUID {
    unsigned long Data1;/* 0x0  4 */
    unsigned short Data2;/* 0x4  2 */
    unsigned short Data3;/* 0x6  2 */
    unsigned char Data4[8];/* 0x8  8 */
};
/* computed from WINNT.H, NT 4.0 SDK */