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//0x4 bytes (sizeof)
struct _MM_SESSION_SPACE_FLAGS
{
    ULONG Initialized:1;                                                    //0x0
    ULONG DeletePending:1;                                                  //0x0
    ULONG WsInitialized:1;                                                  //0x0
    ULONG ObjectInitialized:1;                                              //0x0
    ULONG Filler:28;                                                        //0x0
};