• CMD.（Ability ok, may be have bug or not...）
• File transmission.（profecting..）
  1. Support download file now, the file's size don't be too big.
  2. (upload file is profecting...)

• HearBeat.（OK）

Client and Server both use IOCP modle to connection. Server is single document mode， and client is dialog mode（profecting..）.

1. Big file transport has question in memory alloc.
2. Use zlib on data transport.
3. Process manager.
4. Get screen.