How do I create a working C++ Windows Form Application in Visual Express 2013?

You have this problem because windows application forms are not properly supported in visual studio 2012 and later. In C++ should exist an entry point so the program know where to start executing. You need to locate your cpp file in your project and edit it like this: #include "MyForm.h"  using namespace System; using namespace System::Windows::Forms;   [STAThread] void Main(array<String^>^ args) { Application::EnableVisualStyles(); Application::SetCompatibleTextRenderingDefault(false);  RandomNumberGenerator::MyForm form; Application::Run(%form); } Also you should follow this: At the right-mouse click on ProjectfileName, we get the Properties window. Configuration Properties->Linker->System Select Windows (/SUBSYSTEM:WINDOWS) for SubSystem. And also: Advanced->Entry Point, type in Main. The, hit OK. After this it should work. Note: This is not my work, I found had the same problem and found that solution in this tutorial http://www.bogotobogo.com/cplusplus/application_visual_studio_2013.php