The full discussion of the setaid.ini features is normally found in Appendix B of the "Symantec Endpoint Protection and Symantec Network Access Control Implementation Guide."
When I went in search of a recent version of this bookt I found a blog posting that has taken the information and represented it in a graphical format that makes very nice sense of how the options actually fit together.
http://www.itninja.com/blog/view/silent-deployment-symantec-endpoint-protection-12-1-with-automated-configuration
Hope that helps!