openh323_1.1.2.2.zip; 2. 把pwlib_1.52.zip 、openh323_1.1.2.2.zip分别展开到目录e:\h323\source\pwlib及e:\h323\source\openh323下; 3. 启动MSVC6,Tools | Options | Directories,按如下顺序到INCLUDE FILES 路径里: e:\h323\source\PWLib\Include\PwLib\MSWIN e:\h323\source\PWLib\Include\PtLib\MSOS e:\h323\source\PWLib\Include e:\h323\source\OpenH323\Include