DCOM, or Distributed Component Object Model, is a Microsoft technology that allows software components to communicate over a network. It enables applications to interact with one another, regardless of where they are located, making it easier to build distributed systems. DCOM is an extension of the COM (Component Object Model) architecture, which is used for software component interaction on a single machine. By using DCOM, developers can create applications that leverage components from different sources, enhancing flexibility and scalability. This technology is particularly useful in enterprise environments where various systems need to work together seamlessly. DCOM supports multiple programming languages, making it accessible for a wide range of developers.