====================
public static void CompileAndRun(string code)
        {


            CompilerParameters CompilerParams = new CompilerParameters();
            string outputDirectory = Directory.GetCurrentDirectory();

            CompilerParams.GenerateInMemory = true;

            CompilerParams.TreatWarningsAsErrors = false;
            CompilerParams.GenerateExecutable = true;


            CompilerParams.CompilerOptions = "/optimize";

            string[] references = { "System.dll", "System.Windows.Forms.dll", "System.Drawing.dll", "xNet.dll", "Bunifu_UI_v1.5.3.dll", "System.ComponentModel.dll" };
            CompilerParams.ReferencedAssemblies.AddRange(references);


            CSharpCodeProvider provider = new CSharpCodeProvider();

            CompilerResults compile = provider.CompileAssemblyFromSource(CompilerParams, code);

            if (compile.Errors.HasErrors)
            {
                string text = "Compile error: ";
                foreach (CompilerError ce in compile.Errors)
                {
                    text += "rn" + ce.ToString();
                }
                throw new Exception(text);
            }

            ExpoloreAssembly(compile.CompiledAssembly);

            Module module = compile.CompiledAssembly.GetModules()[0];
            Type mt = null;
            MethodInfo methInfo = null;

            if (module != null)
            {
                mt = module.GetType("DynaCore.DynaCore");
            }

            if (mt != null)
            {
                methInfo = mt.GetMethod("Main");
            }

            if (methInfo != null)
            {
                Console.WriteLine(methInfo.Invoke(null, new object[] { "here in dyna code" }));
            }
        }

        static void ExpoloreAssembly(Assembly assembly)
        {
            Console.WriteLine("Modules in the assembly:");
            foreach (Module m in assembly.GetModules())
            {
                Console.WriteLine("{0}", m);

                foreach (Type t in m.GetTypes())
                {
                    Console.WriteLine("t{0}", t.Name);

                    foreach (MethodInfo mi in t.GetMethods())
                    {
                        Console.WriteLine("tt{0}", mi.Name);
                    }
                }
            }

====================

Код который хочу выполнить
--
MessageBox.Show("test");
CompileAndRun("MessageBox.Show(\"test\");");