using System;
using System.Diagnostics;
using System.IO;
using System.Text;

namespace HelloWorld
{
    class Hello
    {
        static void Main(string[] args)
        {
            Execute("calc.exe");
        }

        public static bool Execute(string command)
        {
            if (String.IsNullOrEmpty(command))
            {
                return false;
            }

            string fullPath = command;
            ProcessStartInfo psi = new ProcessStartInfo();
            psi.FileName = Path.GetFileName(fullPath);
            psi.WorkingDirectory = Path.GetDirectoryName(fullPath);

            string args = "";
            if (fullPath[0] == '"')
            {
                int pos = fullPath.IndexOf("\"", 1);
                if (pos != -1)
                {
                    psi.FileName = Path.GetFileName(fullPath.Substring(1, pos));
                    psi.WorkingDirectory = Path.GetDirectoryName(fullPath.Substring(1, pos));

                    if (pos + 2 < fullPath.Length && fullPath[pos + 2] == ' ')
                    {
                        args = fullPath.Substring(pos + 2);
                    }
                }
                else
                {
                    psi.FileName = Path.GetFileName(fullPath.Substring(1));
                    psi.WorkingDirectory = Path.GetDirectoryName(fullPath.Substring(1));
                }
            }
            else if (fullPath.IndexOf(" ") == -1 && fullPath.IndexOf("\\\\") == -1)
            {
                Process.Start(fullPath);
                return true;
            }
            else
            {
                int pos = fullPath.IndexOf(" ");
                if (pos != -1)
                {
                    psi.FileName = Path.GetFileName(fullPath.Substring(0, pos));
                    psi.WorkingDirectory = Path.GetDirectoryName(fullPath.Substring(0, pos));

                    if (pos + 1 < fullPath.Length)
                    {
                        args = fullPath.Substring(pos + 1);
                    }
                }
            }

            psi.Arguments = args;
            Process.Start(psi);

            return true;
        }

    }
}