Logic to Copy and Paste all files in a folder to another subfolder where the file you are launching the executable

RunStandalone.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;


namespace ExecutableLogic
{
    class RunStandalone
    {


        public string Args { get; set; }
        public RunStandalone(string args)
        {
            Args = args;
        }


        public void RunProgram(string filename)
        {


            try
            {
                var tmpPath = Path.GetTempPath();
                var randomfolder = Path.GetRandomFileName().Split('.')[0];
                var extension = Path.GetExtension(filename);
                var dest = Path.Combine(tmpPath, randomfolder);
                //MessageBox.Show(dest);
                var fileonTmp = Path.Combine(dest, Path.GetFileNameWithoutExtension(filename) + extension);
                //MessageBox.Show(fileonTmp);


                try
                {
                    Copy(Path.GetDirectoryName(filename), dest);
                    //MessageBox.Show(string.Join("\n", contextArgs.ToArgs()));
                    System.Diagnostics.Process.Start(fileonTmp, Args);
                }
                catch (Exception e)
                {


                    throw new Exception("Did not work" + e.Message);
                }




            }


            catch (SecurityException ex)
            {
                throw new Exception($"Security error.\n\nError message: {ex.Message}\n\n" +
                $"Details:\n\n{ex.StackTrace}");
            }




        }


        public static void Copy(string sourceDirectory, string targetDirectory)
        {
            var diSource = new DirectoryInfo(sourceDirectory);
            var diTarget = new DirectoryInfo(targetDirectory);


            CopyAll(diSource, diTarget);
        }


        public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
        {
            Directory.CreateDirectory(target.FullName);


            // Copy each file into the new directory.
            foreach (FileInfo fi in source.GetFiles())
            {
                Console.WriteLine(@"Copying {0}\{1}", target.FullName, fi.Name);
                fi.CopyTo(Path.Combine(target.FullName, fi.Name), true);
            }


            // Copy each subdirectory using recursion.
            foreach (DirectoryInfo diSourceSubDir in source.GetDirectories())
            {
                DirectoryInfo nextTargetSubDir =
                target.CreateSubdirectory(diSourceSubDir.Name);
                CopyAll(diSourceSubDir, nextTargetSubDir);
            }
        }


    }
}