接口描述语言IDL COM规范在采用OSF的DCE规范描述远程调用接口IDL的基础上，进行扩展形成了COM接口的描述语言。 COM规范使用的IDL接口描述语言不仅可用于定义COM-Interface Descr iption Language IDL COM specification in the use of OSF s DCE IDL specification describes a remote call interface, based on the expansion of the