In this paper, we give a DOS SHELL program designed by c programming languageReader can see basic principal of DOS SHELL in commercial software from it, and can use itas an important part when designing new programs.

• 本文给出了C语言设计的DOSSHELL的实例，读者可以从中认识到一般商业软件DOSSHELL的基本原理，而且还可以在设计新程序时加以应用。