// 현재 열려있는 Internet Explorer를 모두 닫는다.int CSetupDlg::CloseExplorer(void){MSG msg;HWND hWnd = ::GetWindow(::GetDesktopWindow(), GW_CHILD); char szClassName[255] = {0,};while(hWnd > 0){memset(szClassName, 0, sizeof(szClassName));GetClassName(hWnd, szClassName, sizeof(szClassName));if(strcmp(szClassName, "IEFrame") == 0 || strcmp(szClassName, "TabThumbnailWindow") == 0)::PostMessage(hWnd, WM_CLOSE, ..