New items such as class modules and Windows forms can be added to a project. You are responsible for updating the properties of an item (such as name) and for filling in the appropriate code. When naming new items, remember that other developers may want to use your items in future applications. Be sure to follow your company’s established naming conventions or the standards established by Microsoft.
To add a new item to your project
Instead of clicking New Item, you can also click Windows Form, Module (VB.NET only), or Class to add one of the main types of items to a project.