struct _MMDEREFERENCE_SEGMENT_HEADER// Size=0x50
{
    struct _KSEMAPHORE Semaphore;// Offset=0x0 Size=0x20
    struct _LIST_ENTRY ControlAreaDeleteListHead;// Offset=0x20 Size=0x10
    struct _LIST_ENTRY UnusedSegmentDeleteListHead;// Offset=0x30 Size=0x10
    struct _LIST_ENTRY PagefileExtensionListHead;// Offset=0x40 Size=0x10
};