Microsoft is testing several new features for the Windows 11 taskbar, including an AI feature named 'Taskbar Companion' that allows users to interact with AI agents and assistants. There have been previous reports on this experimental feature, and now new information has been discovered, including a new entry for the 'Composer feature on the taskbar, integrating with assistants and agents' and related AI modules. Although its specific purpose remains unclear, it is speculated that this feature can enhance the smoothness of the taskbar, help users find applications and complete operations. It may also recommend applications based on user habits, manage taskbar settings, provide suggestions for improving productivity, or simply serve as an assistant for asking questions and displaying information.