run a dos commands from C# code

How to run a dos command from your C# code without showing a console window? Here is some code I copy from http://www.neeao.com/blog/article-3341.html
I have used it in my project, it works.

/**//// <summary>
        /// A method used to run a dos command hiddenly.
        /// </summary>
        /// <param name="dosCommand"></param>
        /// <param name="outtime"></param>
        /// <returns></returns>
        public static string Execute(string dosCommand, int outtime)
        {
            string output = "";
            if (dosCommand != null && dosCommand != "")
            {
                Process process = new Process();//create process object
                ProcessStartInfo startinfo = new ProcessStartInfo();
                startinfo.FileName = "cmd.exe";//
                //bellow is the setting to hidden the console window
                startinfo.Arguments = "/c" + dosCommand;
                startinfo.UseShellExecute = false;
                startinfo.RedirectStandardInput = false;
                startinfo.RedirectStandardOutput = true;
                startinfo.CreateNoWindow = true;
                process.StartInfo = startinfo;

                try
                {
                    if (process.Start())
                    {
                        if (outtime == 0)
                        { process.WaitForExit(); }
                        else
                        { process.WaitForExit(outtime); }
                        output = process.StandardOutput.ReadToEnd();
                    }
                }
                catch (SqlException e)
                {
                    throw e;
                }
                catch (Exception e)
                {
                    throw e;
                }
                finally
                {
                    if (process != null)
                    { process.Close(); }
                }
            }
            return output;
        }