The support for TCP/IP and socket programming in Delphi is as powerful as using the direct API (Winsock, in case of the Windows platform) but far simpler. The socket components, in fact, shield the programmer from some of the complex technical details, but surface the Windows handles and low-level APIs, allowing for custom low-level calls. Writing simple programs with socket support in plain C calling the Windows APIs requires hundreds of lines of code, while using the Delphi socket components, a few lines of code will suffice, even for complex tasks. That’s the standard advantage of component-based development. Also, building a simple user interface for the program is often trivial in Delphi. With other development environments, you need to program the socket in a low-level language (such as C) and then write the user interface with a different visual tool, integrating the two and requiring knowledge of multiple languages.