rdesktop is an implementation of a client software for Microsoft's proprietary Remote Desktop Protocol (RDP).
License: Open Source
Remote Desktop Connection is a built-in Windows application that offers seamless integration and performance for Windows users, while rdesktop is an open-source client that provides cross-platform capabilities and customization. The choice between them depends on the user's environment, with Remote Desktop Connection being ideal for Windows-centric setups and rdesktop suited for diverse operating systems.