Office Add-in Express is a tool for creating Microsoft Office COM add-ins.Using it you can develop a single component that will run across the entire Office suite of applications - Excel, Word, PowerPoint, Outlook, Access, Project.Office Add-in Express hides complexity of implementing the IDTExtensibility2 interface that COM add-in architecture is based on. It allows you to start writing an add-in in just 15 minutes. You create your own toolbars and place your own controls onto them. The controls can be buttons, edit boxes, combo boxes, and pop-ups.Office Add-in Express correctly handles hiding and deleting controls, as well as moving them to other toolbars. It also allows handling the controls' events. Use Delphi forms, standard and custom controls and components to develop a COM add-in.Quick Demo project includes a sample COM add-in for Excel that creates a number of toolbars and controls. You get the source code of the sample add-in where you see the use of Office Add-in Express classes as well as details of toolbar and control creation.