Metadatacopystruct _MI_DECAY_TIMER_LINKAGE { unsigned long Spare0 : 1;/* 0x0:0 4 */ unsigned long PreviousDecayPfn : 15;/* 0x0:1 4 */ unsigned long Spare1 : 1;/* 0x0:16 4 */ unsigned long NextDecayPfn : 15;/* 0x0:17 4 */};