IDE is a term commonly used in the programming world to describe the interface and environment that we use to create our applications. It is called integrated because we can access virtually all of the development tools that we need from one screen called an interface. The IDE is also commonly referred to as the design environment, or the program.
The Visual Basic IDE is made up of a number of components
• Menu Bar
• Tool Bar
• Project Explorer
• Properties window
• Form Layout Window
• Toolbox
• Form Designer
• Object Browser

Project Window
The Project window is use to manage your application’s components. The Project window enables you to manage all those components and bring the component you want to work with to the editing area where you can work on it.
The Project window lists its components in a tree-structured listing. Related objects appear together. You can expand or shrink the details by clicking the plus or minus signs that appear next to object groups. Each item in the Project window has both a project name and a filename. In Visual Basic, you can assign names to objects, such as forms
and modules.

Properties Window

The Properties Window is docked under the Project Explorer window. The Properties Window exposes the various characteristics of selected objects. Each and every form in an application is considered an object. Now, each object in Visual Basic has characteristics such as color and size. Other characteristics affect not just the appearance of the object but the way it behaves too. All these characteristics of an object are called its properties. Thus, a form has properties and any controls placed on it will have properties too. All of these properties are displayed in the Properties Window.

Form Window
Most of work goes on inside the Form window. We design all our application’s forms, which are the background windows that your users see, in the central editing area where the Form window appears. You can resize the Form window to make the windows you create in your applications as large or small as needed.

Code Editor Window – If you select Code View within the Project Window, or if you double-click on a control icon within the Form Design Window, the Code Editor Window will open, displaying the Visual Basic code associated with a particular object. You use the Code Editor Window to write, display, and edit Visual Basic code. You can open as many code editor windows as you have modules, so you can easily view the code in different forms or modules, and copy and paste between them. The code editor window contains two list boxes at the top of the window. The leftmost list box is the Object Listbox, it allows you to select the event procedures associated with a particular object (e.g. command button, form, label, textbox, etc.). The rightmost Listbox is called the Procedure Listbox, for the current object, it allows you to select the event procedure associated with a particular type of event (e.g. Click, DragDrop, KeyDown, MouseDown,