Techwiki:Ntoskrnl/KEXECUTE OPTIONS

  /*
   * NAME:           KEXECUTE_OPTIONS
   * DESCRIPTION:    Internal NX Bit Settings
   * PORTABILITY:    Architecture Independent.
   * KERNEL VERSION: 5.1
   */

   UCHAR ExecuteDisable:1;
   UCHAR ExecuteEnable:1;
   UCHAR DisableThunkEmulation:1;
   UCHAR Permanent:1;
   UCHAR ExecuteDispatchEnable:1;
   UCHAR ImageDispatchEnable:1;
   UCHAR Spare:2;