copy
//0x10 bytes (sizeof)
struct _HEAP_VS_CHUNK_FREE_HEADER
{
    union
    {
        struct _HEAP_VS_CHUNK_HEADER Header;                                //0x0
        struct
        {
            ULONG OverlapsHeader;                                           //0x0
            struct _RTL_BALANCED_NODE Node;                                 //0x4
        };
    };
};