ascii(american standard code for information interchange，美国国家标准信息交换代码)
atl: activex template library(activex模板库)
basic:beginner's all-purpose symbolic instruction code(初学者通用指令代码)
com: component object model(组件对象模式)
dna: distributed internet application(分布式因特网应用程序)
mfc: microsoft foundation classes(微软基础类库)
sdk(software development kit，软件开发工具包)
windows
ce(consumer electronics，消费电子)
dcom: distributing component object model，构造物体模块
dhcp: dynamic host configuration protocol，动态主机分配协议
