This site does not contain serial number, crack, keygen KDDI-VALUE-CHAIN SOFTWARE serial number : serial number is the simplest type of crack. A serial number(cdkey,product key,etc) is register the program as you may already know. a crack or keygen may contain harmful software. If you cannot find the exact version you want, just give it a try. for more information read .nfo/.txt/.diz file include in zipped file.