Execute process in C# without console

ExecuteProcess.cs

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

public class Program
{
    public static void Main(string[] args)
    {
        if (args.Length < 1)
        {
            Console.WriteLine("{source} needed");
            Environment.Exit(1);
        }

        string sourceFile = args[0];

        var process = new Process
        {
            EnableRaisingEvents = false,
            StartInfo = new ProcessStartInfo
            {
                FileName = @"C:\\Program Files\\7-Zip\\7z.exe",
                CreateNoWindow = true,
                WindowStyle = ProcessWindowStyle.Hidden,
                Arguments = string.Format("x \"{0}\"", sourceFile),
                WorkingDirectory = Environment.CurrentDirectory,
                StandardErrorEncoding = Encoding.UTF8,
                StandardOutputEncoding = Encoding.UTF8,
                RedirectStandardError = true,
                RedirectStandardInput = true,
                RedirectStandardOutput = true,
                UseShellExecute = false
            }
        };

        using (process)
        {
            process.Start();
        }
    }
}