PEiD能检测大多数编译语言.、病毒和加密的壳，它主要利用查特征串搜索来完成识别工作的，各种开发语言都有固定的启动代码部分，利用这点可识别是何种语言编译的，被加壳程序处理过的程序，在壳里会留下相关加壳软件的信息，利用这点就可识别是保种壳所加密的(PEiD can detect most compiling languages, viruses, and encrypted shells, which mainly use Chad sign string search to complete recognition work. All kinds of development languages have fixed start code parts, which can be used to identify what language is compiled, the process has been processed by the shell program, and the shell software will be left in the shell. Information can be identified by using the seed shell.)