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int EXE_returnedValue;//var. to save returned offset

byte exec(char* fileName,void* _segment,char* parameter){
     byte fileRetValue;
     fileRetValue=_fopen(fileName,r); //open file
     switch(fileRetValue){
      case 0: return DIR_NOT_FOUND;
      case 1: return FILE_NOT_FOUND;
     }
      _fcopy2segment(_segment); //copy content of file to buffer
     _fclose(); //close file

     _saveTCRegs(); //save turbo C registres and flags (AX,..)

     EXE_returnedValue=(int)return_point;//get returned offset

     _decompressMZ();//get CS,DS,SS from EXE
     _setupMZ(); //setup new Regs,Flags for EXE
     asm{ push MZ_segment //point to jump
          push MZ_offset  //CS:IP
          retf            //jump to our EXE 
     }

asm return_point label byte //when EXE finish will go here throu interrupt
 return EXE_DONE;
}

void interrupt killEXE(){//this method must call from EXE to KILL process
    _loadTCRegs();//return to previous TC registers
    memset(_segment,NULL,_fSize());//clear buffer
     asm{mov ax,cs
         push ax
         push EXE_returnedValue
         retf
     }
}

main(){
  THREAD _thread;     _thread.add(exec("system/Fileviw.exe",0x20000000L,"doc/test.txt"));
_thread.add(exec("system/bscript.exe",0x30000000L,"script/intro.bs"));
_thread.schedule();
}

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 void saveTCRegs(){
  _ax=_AX;
  :
  : 
  _cflags=_FLAGS;
 }

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  THREAD _thread;     _thread.add(exec("system/Fileviw.exe",0x20000000L,"doc/test.txt"));
_thread.add(exec("system/bscript.exe",0x30000000L,"script/intro.bs"));
_thread.schedule();