本书分为两个部分.第一部分介绍了病毒基础知识和反病毒工具的使用方法.第二部分深入DOS内部介绍病毒原理.使用与中高级人员参考!-the book is divided into two parts. The first part gives a basic knowledge of the virus and anti-virus tools use. The second part of the internal DOS-depth briefing virus theory. Senior officers and the use of reference!