{ IMPORTANT FILE FUNCTIONS XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX }
  function  __attrfilter(fileattr, filter: byte): boolean;
  function  __bak(s: string): string;
  function  __comexebatcmdfilter(s: namestr): boolean;
  function  __curdir: string;
  function  __deverr: string;
  procedure __drvparm(drv: char);
  procedure __erasefiles(s: string);
  function  __existpath(s: string): boolean;
  function  __extractext(name: pathstr): str3;
  function  __extractname(s : string): string;
  function  __extractpath(s : string): string;
  function  __findfil(f: string; var s: string): boolean;
  function  __inparams(s: string; var i: word): boolean;
  function  __packfil(str: string; size: byte): string;
  procedure __parsefil(name: filestr; var nam: namestr; var ext: extstr);
  function  __searchrec(
    src                  : searchrec;
    nm, woord, mainsize  :      word;
    takemainsize, extended,
    ampm, show_attr,
    wide                 :   boolean
  ): string;
  function  __sizefil(pt: string): longint;
  function  __strattr(attr: byte; full: boolean): string;
  procedure __uniquefil(               { i.s.o. __tempfil, an unique textfile }
    var pathname: string; var tmpfile: text; var errorcode: word
  );
  function  __copyfil(x1,x2,y,f,b: byte; fs: longint; src, targ: string): byte;