Hiring a COM/DCOM/ATL developer is beneficial for managing complex projects involving Microsoft technologies. They are skilled in creating reusable software components, enhancing code efficiency, and ensuring seamless communication between different software programs. Their expertise in Component Object Model (COM), Distributed Component Object Model (DCOM), and Active Template Library (ATL) allows for robust and distributed applications development. This leads to improved software scalability, reliability, and performance. Their knowledge in handling these specific Microsoft technologies can provide a competitive edge to your business.