This day, computer networking has become important necessity for data exchange
between computers. And along with the growing of number of computer in a network, the difficulty for managing that network also increased. Because of that reality, in this paper will be build application for remote controlling computer using TCP/IP protocol.
This application build using Delphi 5.0 programming language and dWinsock 2.75, component interface for Windows Socket API which is created especially for Delphi language, and separate to two sub applications, namely server application, which run on computer to be controlled and the secondly is client application, run on controller computer. In this application, data text or binary will be send, so two pair components will be used : TTextServer - TTextClient and TBinaryServer–TBinaryClient. The functions which implemented in this applications are : lock and unlock computer, reboot, shutdown, execute remote program, send message, capture screen and view remote programs. Test is doing on internal network and internet network, and the result of that test for internal network, all of functions can be activated perfectly without significant delay (less than 1 second). But for internet network, there is delay, which the number variable depend on data traffic at thatmoment.