CODE-1 Plus implements EWS through Auxiliary File processing. There are two steps to setting up your auxiliary file. First, you must reformat the record into a structure recognizable by the CODE-1 Plus matching engine. Second, CODE-1 Plus must recognize the additional auxiliary file.
When you activate the Auxiliary File, addresses that match to the EWS File will not be coded. CODE-1 Plus will report these records as neither matched nor mismatched records. Additionally, addresses that match to the EWS file will appear on the Control Totals Report as "Confirmed via Match to Auxiliary File."
Note: You must build the Auxiliary File using the C1AUXBLD program, supplied with your CODE-1 Plus software.
Note: The USPS refreshes the EWS file on a weekly basis (Thursdays). You can download the EWS file from at the USPS https://postalpro.usps.com/ website. It is a line sequential file containing 3950 records and is about 345 KB in size. However, the number of records and file size is subject to change.