share·ware /-ˌwær, ˌwɛr/
  共用軟體;   (在BBS文件服務中的共用軟體,使用前需向原作者註冊,以取得合法使用權)
  shareware
       n : software that is available free of charge; may be
           distributed for evaluation with a fee requested for
           additional features or a manual etc.