How to: Interact with Windows Forms
You can add Windows Forms to your Visual Studio Tools for Office projects the same way you do in other projects in Visual Studio. For more information, see Windows Forms Controls.
The following example uses a document-level project for Excel.
Your computer might show different names or locations for some of the Visual Studio user interface elements in the following instructions. The Visual Studio edition that you have and the settings that you use determine these elements. For more information, see Visual Studio Settings.