摘要： A context menu extension is a COM object implemented as an in-proc server. The context menu extension must implement the IShellExtInit and IContextMenu interfaces. A context menu extension is instantiated when the user displays the context menu for an object of a class for which the context menu extension has been registered. 从新建项目起一步步演示如何创建一个上下文菜单项，最终将生成一个.dll文件并使之生效。 阅读全文