keybd_event(VK_LCONTROL,0,0,0); //模擬按下ctrl鍵
int iResult = (int)ShellExecute(NULL,"open","C:/abcd.exe",NULL,NULL,SW_SHOWNORMAL); //執行應用程序
Sleep(1000); //停頓一秒
keybd_event(VK_LCONTROL,0,KEYEVENTF_KEYUP,0); //釋放ctrl鍵
keybd_event(VK_SHIFT,0,KEYEVENTF_KEYUP,0); //釋放shift鍵
注意: 使用完一定要釋放按鍵,否則整個系統都是一直按下ctrl+shift鍵,讓你不得不註銷用戶,呵呵