(In the first introduction D. 6 The realization method of the network communication between the operating system and the whb mite operating system. Under the platform of willI such as, ^, s, the client program is developed by using the winsock class supplied by MFC according to the environment of VbualC++ 6.0. Under MS-D()S platform, according to B0rlalldc++3.1 environment, use a DOS to develop server-side program according to PacketDriver's development package wattprint.)