[DllImport("User32.dll")]public static extern Int32 SetForegroundWindow(int hWnd); [DllImport("user32.dll")]public static extern int FindWindow(string lpClassName, string lpWindowName); private void BringToFront(string className,string CaptionName) { SetForegroundWindow(FindWindow(className,CaptionName)); }private void Form1_Load(object sender, EventArgs e) { BringToFront("Notepad", "Untitled - Notepad"); }