Before proceeding, please be certain that there are no UniBasic users on your system before removing current license.
If you are using UniBasic version 5 or greater, then kill the running passport daemon and remove the /etc/DCI/license file. Restart the passport daemon by running /etc/DCI/passport.cmd after removing the /etc/DCI/license file. Remember to acquire and enter a new SSN prior to using UniBasic.
If you are using UniBasic revision 4, you can generate a new license number by typing
"unibasic -ddeactivate" from the root account and then by rerunning UniBasic.