Hi Robert,
If you have BIAB 2011, you'll also have Realband as the PG Music set-up installs both programs at the same time. It will be under the Start Menu in the Band In A Box item. (You mentioned that you had version "11". I have taken this to mean version 2011, Windows edition. If it is indeed the very much older version 11, and/or a non-Windows edition then you may not have Realband.)
Regards,
Noel