The following files are necessary to build this product from scratch: SA.MAC SB.FOR SD.FOR SE.FOR SM.FOR SN.FOR SO.FOR SP.FOR SS.FOR ST.FOR SPLOAD.CMD The batch control file, SPSMAKE.CTL will automatically compile, link, and save a new version of the SPS. The file SPSMAKE.LOG contains the log of the batch run that created this version of the product.