Question:
I'd like to know if you need a license file for running CA Directory
12.0 SP18 CR6 with CA Single Sign-On ?
Answer:
You don't need any License file as it has its
"license bits of code removed a while back."
CA Directory/SiteMinder License Validation
https://communities.ca.com/message/241895331
So said, as long as you've got your legal contract enforced for it,
you can run it.
KB : KB000077181