#include<afxwin.h>
class CMyWinApp:public CWinApp
{
public:
virtual BOOL InitInstance();
};
BOOL CMyWinApp::InitInstance()
{
CFrameWnd *pFrame =new CFrameWnd;
pFrame->Create(0,_T("My MFC program"));
pFrame->ShowWindow(SW_SHOWMAXIMIZMD);
pFrame->UpdateWindow();
AfxGetApp()->m_pMainWnd=pFrame;
return TRUE;
}
CMyWinApp MyApp;

}
}

应该是: pFrame->ShowWindow(SW_SHOWMAXIMIZED);(常数写错了)
其它没什么问题呀,应该可以运行的.