AppleShare 2.0.x clients and System 7 clients can access AppleShare 3.0 servers, but can't use the new features of AppleShare 3.0. If a user with an expired password logs on to an AppleShare 3.0 server, that user's old workstation software doesn't support the extended security, and he or she won't be able to log on. The new workstation software gives a message and the opportunity to enter a new password.