Manual Routing Pre-Encryption Checking. Indicates if the APEX is to check if the input service is pre-encrypted or clear. Pre-encrypted is determined by examining the input PMT for a CA ECM descriptor (any CA ECM descriptor). If pre-encrypted, setting this flag will cause the APEX to pass through ECM PID for this service. For input services that have a GI CA ECM descriptor, the APEX will also pass through the PIT message (extract and re-insert the PIT). The output PMT for pre-encrypted services will contain a CA ECM descriptor (referencing the ECM PID). When PID Remapping is enabled, pre-encryption for a service is only valid when the input ECM PID is on a different PID than the associated PMT PID. If this flag is set to pre-encryption and the input service is not pre-encrypted, then the setting of this flag has no affect on the output service.