C / C++ / C#

Use visual designers of this component set to create professional extensions for Microsoft Office in VSTO 2005 and VSTO 2005 (SE). Enjoy lots of advanced features: customize Office 2007 Ribbon UI and Office 2003 toolbars at design-time, add elements to Ribbon tabs, the Quick Access Toolbar and Office Menu and validate the resulting Ribbon XML in no time. C# and VB.NET are supported. Read more at http://www.add-in-express.com/add-in-vsto/

With this visual RAD toolkit you can easily develop secure, managed, isolated, version-neutral and deployable plugins for Outlook Express on Windows Mail. Add-in Express provides you with unified extensibility model based on familiar interfaces and objects of MS Office and Outlook, visual designers for customizing Outlook Express menus and toolbars, advanced view and form regions and more. It directly supports VB .NET, C#, C++ and RO Chrome.

This all-in-one framework provides a simple and quick way to customize Internet Explorer with your own browser extensions. You can create thread-safe, secure, isolated, deployable and context-sensitive add-ons for Internet Explorer IE 6, 7 and 8 (32- and 64-bit) with your menu items, toolbar buttons, context menus, toolbars, side-bars and keyboard shortcuts. It directly supports VB.NET, C#, C++ and Delphi Prism.

This is a free sample add-in (ready to install and use) that adds a number of useful features to Microsoft Excel. The add-in is based on the innovative Add-in Express technology and gives you an example of developing Excel add-ins, creating custom toolbars and controls and accessing Excel objects. The add-in contains a full source code in VB, C# and supports Excel 2003 and Excel 2007. It works in VSTO 2005 SE and VSTO 2008 (VB.NET, C#).

This component allows developers to add any visual .NET controls onto Microsoft Office applications' toolbars at design-time. You can create feature-rich toolbars of Outlook, Excel, Word, PowerPoint. Supports Visual Basic .NET, C#, C++ .NET, J# in Visual Studio 2003 and Visual Studio 2005. Toolbar Controls for Microsoft Office gives .NET developers new possibilities to create advanced GUI of Microsoft Office COM add-ins.