Internet Explorer Not always minimze

Question

I'm trying to minimize internet explorer after starting. If i don't have any window before then it works fine. and if i already have instance of IE. then it doesn't minimize .

 

ProcessStartInfo startInfo = new ProcessStartInfo("IExplore.exe");

startInfo.WindowStyle = ProcessWindowStyle.Minimized;

string sub;

startInfo.Arguments = "www.google.com";

Process.Start(startInfo);