Abstract: Along with the development of software technology,the architecture of the software changes majorly. Traditional software architecture has many defects in upgrading, performance optimization. When the upgrading is performed, it need recompile and link the whole code. In the performance, most of the software always loads all modules when it starts. In order to solve these problems, this work bases on dynamic link library, presenting a new software design method. Using this framework, engineers could program the software interface efficiently, loading the modules when it needs. This framework supports expanding. When engineers do the second development, they needn't compile the main framework. Every modules display as dynamic link library, reducing the application's coupling.

Key words: Dynamic link library, Delay loading, Plugin, Module, Plug and play, DirectUI