typedef struct _CM_TRANS
{
     LIST_ENTRY TransactionListEntry;
     LIST_ENTRY KCBUoWListHead;
     LIST_ENTRY LazyCommitListEntry;
     PVOID KtmTrans;
     PCM_RM CmRm;
     PKENLISTMENT KtmEnlistmentObject;
     PVOID KtmEnlistmentHandle;
     GUID KtmUow;
     UINT64 StartLsn;
     ULONG TransState;
     ULONG HiveCount;
     PCMHIVE HiveArray[8];
} CM_TRANS, *PCM_TRANS;

Windows Vista Kernel Structures