Aside from fitting well with the Microsoft environment, creating components and component based software also works well with the management and tracking of development teams. Components naturally divide into manageable granular pieces that can easily be assigned to one developer or a small team–avoiding large, single line items in the timeline. Also, since the proper creation of components usually will be of shorter duration and more concise than a larger .exe, you can avoid the programs that take two weeks to become 80% complete and three weeks to finish the last 20%. Lastly, components can help speed up the testing process by getting individual pieces and areas of functionality out to the testers sooner than a larger, single veined executable.