c++builder中怎么调用系统的记事本、计算器、Outlook(50分)

谢谢各位大狭！
c++builder中怎么调用系统的记事本、计算器、Outlook

ShellExecute(frmMain.Handle,nil,PChar('WINWORD.EXE'),nil,nil,SW_SHOWNORMAL);

void __fastcall TForm1::Button1Click(TObject *Sender)
{
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInfo;
StartupInfo.cb = sizeof(STARTUPINFO);

StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
StartupInfo.wShowWindow = SW_SHOWDEFAULT;
// 运行计算器
CreateProcess(NULL,
"Calc",
NULL,
NULL,
FALSE,
CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS,
NULL,
NULL,
&StartupInfo,
&ProcessInfo);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button2Click(TObject *Sender)
{
// 运行写字本
WinExec("NotePad",SW_RESTORE);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button3Click(TObject *Sender)
{
HWND hWndCalc; // 窗口句柄
// 查找“计算器”窗口
hWndCalc = FindWindow(NULL, "计算器");
if( hWndCalc!=0 )
SendMessage(hWndCalc, WM_CLOSE, 0, 0);
}

ShellExecute(frmMain.Handle,nil,PChar('WINWORD.EXE'),nil,nil,SW_SHOWNORMAL);

接受答案了.