struct _HEAP_VIRTUAL_ALLOC_ENTRY// Size=0x40
{
    struct _LIST_ENTRY Entry;// Offset=0x0 Size=0x10
    struct _HEAP_ENTRY_EXTRA ExtraStuff;// Offset=0x10 Size=0x10
    unsigned long long CommitSize;// Offset=0x20 Size=0x8
    unsigned long long ReserveSize;// Offset=0x28 Size=0x8
    struct _HEAP_ENTRY BusyBlock;// Offset=0x30 Size=0x10
};