C# - Download & Execute in memory

        public static void Exec(byte[] file)
        {
            Assembly assembly = Assembly.Load(file);
            MethodInfo entryp = assembly.EntryPoint;
            object objectval = RuntimeHelpers.GetObjectValue(assembly.CreateInstance(entryp.Name));
            if (entryp.GetParameters().Length > 0)
            { entryp.Invoke(RuntimeHelpers.GetObjectValue(objectval), new object[] { new string[] { "1" } }); }
            else
            { entryp.Invoke(RuntimeHelpers.GetObjectValue(objectval), null); }
        }