I try to create a very simple app using windows API.

I've done some small apps in console. This is the first time I do with Win32 apps. I've searched and found a document from forgers which is recommended in this site. But I try to write very first line:

    #include <stdafx.h>
#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    MessageBoxW (NULL, "Good bye Cruel World", "Note", MB_OK );
    return 0;
}

But it doesn't work ( erased lines from default project created by VS 2008 and write these lines ) Waiting for your answers :)