Find the Include Programs which are not used

Hii..

I have to write a code to find out all the Include programs in my system which are not used. I am unable to find the correct table for that. I checked TADIR & Reposrc tables, but i am unable to differentiate between the "Includes which are used" and the "Includes which are not used". Let me know if there is any table which differentiates this.

Thanks.

Best Regards,

Srikanth.