Halt                     Halts Program Execution and Returns Error Code

 Halt;                                                                   [TP]
 Halt(ErrCode : Integer);                                                [TP]

    Halts program execution and returns to the Turbo Pascal menu (if you
    are running under Turbo Pascal) or MS-DOS (if you are executing a .COM
    file). Halt may also optionally pass an integer parameter that
    specifies the return code of the program (If no parameter is
    specified, 0 is assumed). The return code can be tested by a parent
    process or by MS-DOS's ERRORLEVEL batch testing.

  -------------------------------- Example ---------------------------------

           if FileNotFound then Halt;       { Exit with an error code of 0 }
           if DirNotFound then Halt(1);     { Exit with an error code of 1 }