From the doc: 'This project demonstrates how to send a file to a remote computer using the Winsock control. One side is the server and the other is the client. Only the server can send a file to the client. The client is then promted if they want to accept the file. Before the server sends the file, there has to be a connection. If you are the server, click 'HOST' to listen for incoming connections.When the client connects to you (by putting your IP address in the Remote IP field and clicking 'CONNECT'), you can select a file and send it.'