//0x28 bytes (sizeof)
struct _FSRTL_PER_STREAM_CONTEXT
{
    struct _LIST_ENTRY Links;                                               //0x0
    VOID* OwnerId;                                                          //0x10
    VOID* InstanceId;                                                       //0x18
    VOID (*FreeCallback)(VOID* arg1);                                       //0x20
};