Creating a New Dialog Box
To create a new dialog box
In Resource View, right-click your .rc file, then choose Add Resource from the shortcut menu.
If your project doesn't already contain an .rc file, please see Creating a New Resource Script File.
In the Add Resource dialog box, select Dialog in the Resource Type list, then click New.
If a plus sign (+) appears next to the Dialog resource type, it means that dialog box templates are available. Click the plus sign to expand the list of templates, select a template, and click New.
The new dialog box opens in the Dialog editor.
For information on adding resources to managed projects, please see Resources in Applications in the .NET Framework Developer's Guide. For information on manually adding resource files to managed projects, accessing resources, displaying static resources, and assigning resources strings to properties, see Walkthrough: Localizing Windows Forms and Walkthrough: Using Resources for Localization with ASP.NET.