Remote Control And Monitor In The Local Area Networks

I used Delphi 6 to exploit this remote control software that is primarily applied in the Local Area Networks (LAN) and divided into two parts, client and server. The client is installed on the monitor. The server installed on the remote computer will automatically run by registry after the remote computer is turned on. It always runs under the system directory by copy itself in order to hide it. The server is related with txt file in order to restore, so that the remote user cannot delete it. The server is registried as system server so that the server process would not emerge in the taskbar and the task monitor. I selected the User Datagram Protocol as transport protocol, and formulated application protocol, so that the server can receive the orders from the client and do anything ordered by the client. Data is transported by "stream" that is object-oriented abstract data between the client and the server in the LAN, and I also use TUMUDP to transmit and receive "stream". Many API functions are used in my paper in order to control the keyboard and the mouse of the remote computer, and also control its system ability (such as turn off or reset it). The monitor can control registry of the remote computer by TRegistry and obtain its system information by registry. The journal hook is also setted to record keyboard's input information. I also make chat system and media play based on the stream. The server can capture screen images of remote computer and transported by the stream to the monitor, so we can monitor it in time. Finally, the monitor can manage file system of the remote computer and non-empty directory by fuctions made by myself.In chap.l I introuduced program mode of the software, technology emphasis, realized function, and Delphi 6. The application protocol is introuduced in chap.2. Some features of the server and API function are introuduced in chap.3. I presented property, method and application of stream in chap.4. Registry is introuduced in chap.5. In chap.6, hook is presented. Screen monitor and file system is introuduced in chap.7.