struct _HEAP_VS_CHUNK_FREE_HEADER// Size=0x20
{
    struct _HEAP_VS_CHUNK_HEADER Header;// Offset=0x0 Size=0x10
    unsigned long long OverlapsHeader;// Offset=0x0 Size=0x8
    struct _RTL_BALANCED_NODE Node;// Offset=0x8 Size=0x18
};