Trying to clean up some pools left over from decommissioned archiving software. The apps are long gone. This is what I get:

CASScript>clipdel BKBB440MDP0HTe33H80LEUEFK7U

SDK Error Occurred:

         Error Number: -10204
         System Error: 25
         Error:        FP_OPERATION_NOT_ALLOWED
         Error Class:  null
         Trace:        NetworkPacket.checkControl(25) un() b(BKBB440MDP0HTe33H80LEUEFK7U,,0) U,,0)<_FPClip_Delete(pool,BKBB440MDP0HTe33H80LEUEFK7U,NULL,0) BB440MDP0HTe33H80LEUEFK7U)