Abstract: Windows programming is a interactive method which based on event-drive, it has many API functions which in DLL, but it is difficult to complete the user interface, and reusability maintain and extendence is poor; oriented-object method and technology supply many base user interface objects, such as windows and controlled units. Based on the oriented object and windows programming feature, supply a method which can release the user interface of the application program,and interactive reusability maintain and extendence is good.