摘要
本文从计算机实验教学的系统维护角度出发，提出了一种利用局部修改DOS内核和部分外部命令代码以实现微机软件系统保护的方法。同时基于对DOS系统的剖析，给出了具体的修改依据、步骤和相应的辅助工作程序。
Based on the needs of maintaining the system of experimental teaching of computer, this paper provides a protectingmethod of computer software, using regional modifying DOS core and partial changing outer command code. On the basis ofanalysing DOS system, it gives out the spe6ific modifying evidence, procedure and corresponding excute program.
