TSR is a common term and a kind of application program of DOS. Thispaper makes researches into technical ways of TSR programming and a practicalmodel of composing program with assembly language.

• TSR是DOS下常见的一个术语,TSR也是一种特殊的DOS应用程序,本文对TSR编程技术方法作一探讨并给出一个用汇编语言编程的实际例子。