1)   Add-in Express 2 .NET Edition 2.4 A RAD tool for writing COM Add-ins, Smart Tags and RTDs on .NET. Add-in Express implements everything required by the supported technologies, you write functional code only. Supports all Office apps. Developed for C#, VB.NET, J#, C++, Delphi for .NET 2)   Add-in Express 2 VCL Edition 2.5 A true RAD tool for writing COM Add-ins, Smart Tags and RTD servers in Delphi 5, 6, 7, 2005 and 2006. It implements everything required by the supported technologies, you write functional code only. Supports Outlook, Excel, Word, PowerPoint, etc. 3)   Add-in Express 1.9 Add-in Express is a tool for developing Office COM Add-ins in Delphi. Develop a single component that will run in Excel, Word, Outlook, PowerPoint, Access, FrontPage and Project. Create toolbars and place your controls on them. Try it and make sure!