Describe: this is the multi-chatting program

File list(time 2008061017~2009102003)(Click to check if it's the file you need, and recomment it at the bottom):
  client.cpp
  client.dsp
  client.dsw
  client.ncb
  client.opt
  client.plg
  server.cpp
  server.dsp
  server.dsw
  server.ncb
  server.opt
  server.plg