Listing 1

integer li_rc
string  ls_curver

li_rc = RegistryGet ( &
  "HKEY_CLASSES_ROOT\Word.Application\CurVer", &
  "", RegString!, ls_curver )

IF li_rc < 0 THEN
  MessageBox ( "OLE Error", &
    "Could not determine the version " + &
    "of Word installed." )
  Return -1
END IF

CHOOSE CASE lower ( ls_curver )
  CASE "word.application.8"
    inv_word = CREATE n_cst_ole_word_97
  CASE "word.application.9"
    inv_word = CREATE n_cst_ole_word_2000
  CASE "word.application.10"
    inv_word = CREATE n_cst_ole_word_xp
  CASE ELSE
    MessageBox ( "OLE Error", &
      "I do not know how to handle " + &
      "the version of Word installed." )
    Return -1
END CHOOSE

try
  Return inv_word.of_connect()
catch ( Throwable MyError )
  Return -1
end try