//0x298 bytes (sizeof)
struct _RTL_USER_PROCESS_PARAMETERS
{
    ULONG MaximumLength;                                                    //0x0
    ULONG Length;                                                           //0x4
    ULONG Flags;                                                            //0x8
    ULONG DebugFlags;                                                       //0xc
    VOID* ConsoleHandle;                                                    //0x10
    ULONG ConsoleFlags;                                                     //0x14
    VOID* StandardInput;                                                    //0x18
    VOID* StandardOutput;                                                   //0x1c
    VOID* StandardError;                                                    //0x20
    struct _CURDIR CurrentDirectory;                                        //0x24
    struct _UNICODE_STRING DllPath;                                         //0x30
    struct _UNICODE_STRING ImagePathName;                                   //0x38
    struct _UNICODE_STRING CommandLine;                                     //0x40
    VOID* Environment;                                                      //0x48
    ULONG StartingX;                                                        //0x4c
    ULONG StartingY;                                                        //0x50
    ULONG CountX;                                                           //0x54
    ULONG CountY;                                                           //0x58
    ULONG CountCharsX;                                                      //0x5c
    ULONG CountCharsY;                                                      //0x60
    ULONG FillAttribute;                                                    //0x64
    ULONG WindowFlags;                                                      //0x68
    ULONG ShowWindowFlags;                                                  //0x6c
    struct _UNICODE_STRING WindowTitle;                                     //0x70
    struct _UNICODE_STRING DesktopInfo;                                     //0x78
    struct _UNICODE_STRING ShellInfo;                                       //0x80
    struct _UNICODE_STRING RuntimeData;                                     //0x88
    struct _RTL_DRIVE_LETTER_CURDIR CurrentDirectores[32];                  //0x90
    volatile ULONG EnvironmentSize;                                         //0x290
    volatile ULONG EnvironmentVersion;                                      //0x294
};