http://borland.mblogger.cn/aiirii/posts/3558.aspxAdd-in Express VCL Edition is completely based on Borland VCL and Delphi IDE. Add-in Express doesn't require deep knowledge of the COM Add-in technology and it allows a Delphi developer to quickly start with a new add-in. All parts of Add-in Express require minimum time to learn about COM add-ins development.
组件面板那个像Excel的图标的控件你研究一下 呵呵