AUs Delphi Praxis:

Fileattribute Windows:

faInvalid = -1;
  faReadOnly = $00000001;
  faHidden = $00000002 platform; // only a convention on POSIX
  faSysFile = $00000004 platform; // on POSIX system files are not regular files and not directories
  faVolumeID = $00000008 platform deprecated; // not used in Win32
  faDirectory = $00000010;
  faArchive = $00000020 platform;
  faNormal = $00000080;
  faTemporary = $00000100 platform;
  faSymLink = $00000400 platform; // Available on POSIX and Vista and above
  faCompressed = $00000800 platform;
  faEncrypted = $00004000 platform;
  faVirtual = $00010000 platform;
  faAnyFile = $000001FF;
