Create an Application without a Window

Question

How would you program a C/C++ application that could run without opening a window or console?

Answer 1

In Visual Studio Express 2010 after setting the subsystem to windows (as suggested by user17224), alternatively to changing the main to WinMain (as suggested by user17224 and Brian R. Bondy), one can set the entry function to main in properties, linker, advanced, entry point: just type main in the text box.