C# console app to set Windows background image and lockscreen image (REQUIRES ADMIN PERMISSIONS)

Program.cs

using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using Microsoft.Win32;

namespace LockScreen
{
    /* ====================================================
     * 
     * !! MUST BE RUN AS ADMIN !!
     * 
     * USAGE:
     *   LockScreen.exe LockScreen=C:\image.png
     *   LockScreen.exe Background=C:\image.png
     *   LockScreen.exe LockScreen=C:\image.png Background=C:\image.png
     * ====================================================
     */
    class Program
    {
        const string REGISTRY_KEY = @"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\PersonalizationCSP";
        static void Main(string[] args)
        {
            IntPtr ptr = new IntPtr();
            Wow64DisableWow64FsRedirection(ref ptr);

            if (args.Any(a => a.StartsWith("LockScreen")))
            {
                string lockScreenSource = args.First(a => a.StartsWith("LockScreen")).Split(new[] { '=' }, 2)[1];
                bool success = SetLockScreen(lockScreenSource);
                if (success)
                    Console.WriteLine("LockScreen set!");
            }

            if (args.Any(a => a.StartsWith("Background")))
            {
                string backgroundSource = args.First(a => a.StartsWith("Background")).Split(new[] { '=' }, 2)[1];
                bool success = SetBackground(backgroundSource);
                if (success)
                    Console.WriteLine("Background set!");
            }
        }

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr); //If on 64 bit, C# will replace "System32" with "SysWOW64". This disables that.

        private static bool SetLockScreen(string imageSource)
        {
            try
            {
                const string LOCK_SCREEN_DEST_PATH = @"C:\Windows\System32\LockScreen.jpg";

                File.Copy(imageSource, LOCK_SCREEN_DEST_PATH, true);
                Registry.SetValue(REGISTRY_KEY, "LockScreenImageStatus", 1, RegistryValueKind.DWord);
                Registry.SetValue(REGISTRY_KEY, "LockScreenImagePath", LOCK_SCREEN_DEST_PATH, RegistryValueKind.String);
                Registry.SetValue(REGISTRY_KEY, "LockScreenImageUrl", LOCK_SCREEN_DEST_PATH, RegistryValueKind.String);
            }
            catch
            {
                return false;
            }

            return true;
        }

        private static bool SetBackground(string imageSource)
        {
            try
            {
                const string BACKGROUND_DEST_PATH = @"C:\Windows\System32\Desktop.jpg";

                File.Copy(imageSource, BACKGROUND_DEST_PATH, true);
                Registry.SetValue(REGISTRY_KEY, "DesktopImageStatus", 1, RegistryValueKind.DWord);
                Registry.SetValue(REGISTRY_KEY, "DesktopImagePath", BACKGROUND_DEST_PATH, RegistryValueKind.String);
                Registry.SetValue(REGISTRY_KEY, "DesktopImageUrl", BACKGROUND_DEST_PATH, RegistryValueKind.String);
            }
            catch
            {
                return false;
            }

            return true;
        }
    }
}