Execute script with ProcessStartInfo C#

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C#

I have a vbscript I execute from my C# application; it works fine, but how can I monitor the process to make sure it didn't hang? How do I know the vbscript finished and if it hangs, how can I kill it?
Thanks for any help.
Scott

ProcessStartInfo si = new ProcessStartInfo();

si.FileName = "cscript.exe";
si.RedirectStandardOutput = true;                
si.Arguments = "Script.vbs";
si.UseShellExecute = false;
si.WindowStyle = ProcessWindowStyle.Hidden;
si.CreateNoWindow = true;
Process p = Process.Start(si);

string searchResult = p.StandardOutput.ReadToEnd();
p.WaitForExit();