JOIN FILES WITH DOS COMMAND BINARY COPY

COPY 2 FILES TO SOURCE FILE

IE:
copy /B CLIENT1.DAT+CLIENT2.DAT CLIENT.DAT

THIS COMMAND WILL COPY CLIENT1 AND CLIENT2 TO A NEW 3RD FILE CLIENT.DAT SAME THING APPLIES TO MORE FILES JUST KEEP ADDING FILES WITH PLUS SIGN AND THEN SPACE TO THE DESTINATION FILE.