We will now, per tradition, build a very simple command line application: an executable that outputs the string "Hello World". We will build three versions of this application, one in each of the Visual Studio 7.0 languages: Managed C++ (produced using Visual C++ 7.0), Visual Basic, and C#.
Installing the sample files that accompany this document places each of the three "Hello World" programs in a separate subdirectory - \vc, \cs, and \vb – below the \Samples\IntroDev\HelloWorld subdirectory. Each application uses a single source code file and a batch command-line build file. The Visual Basic version also uses a project file, though this requirement may change before final release of the product.