基于ATL+COM技术的Office插件开发，在VC++6.0上运行通过。环境为Word 2003。图标文件是位图格式的，理论上ICON格式的也可以。-Office plug-in development based on the ATL COM technology, run through VC++ 6.0. Environment in Word 2003。The icon files are bitmap formats can also be theoretically ICON fo

VC++6.0写的COM组件 作用： 可以根据文件扩展名相同文件的文件的内容不同，显示不同的图标-Role VC++6.0 write COM components: according to different content file extension of the same file, display different icons