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//0x80 bytes (sizeof)
struct _VF_AVL_TABLE
{
    struct _RTL_AVL_TABLE RtlTable;                                         //0x0
    struct _VF_AVL_TREE_NODE* ReservedNode;                                 //0x38
    VOID* NodeToFree;                                                       //0x3c
    volatile LONG Lock;                                                     //0x40
};