.NET - WindowStyle = hidden vs. CreateNoWindow = true?

Question

When I start a new process, what difference does it make if I use the

WindowStyle = Hidden

or the

CreateNoWindow = true
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Answer 1

Using Reflector, it looks like WindowStyle is used if UseShellExecute is set, otherwise it uses CreateNoWindow.

In MSDN's example, you can see how they set it:

// Using CreateNoWindow requires UseShellExecute to be false
myProcess.StartInfo.UseShellExecute = false;
// You can start any process, HelloWorld is a do-nothing example.
myProcess.StartInfo.FileName = "C:\\HelloWorld.exe";
myProcess.StartInfo.CreateNoWindow = true;
myProcess.Start();

In the other example, its just below because UseShellExecute is defaulted to true

// UseShellExecute defaults to true, so use the WindowStyle
ProcessStartInfo startInfo = new ProcessStartInfo("IExplore.exe");
startInfo.WindowStyle = ProcessWindowStyle.Minimized;