struct _VI_POOL_ENTRY// Size=0x10
{
    struct _VI_POOL_PAGE_HEADER PageHeader;// Offset=0x0 Size=0xc
    struct _VI_POOL_ENTRY_INUSE InUse;// Offset=0x0 Size=0x10
    struct _SINGLE_LIST_ENTRY * NextFree;// Offset=0x0 Size=0x4
};