Generate .exe files by a c# program

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C#

execution

reflection

hey !
can someone help me to know how generate a .exe file from a c# program?
i tried these codes , but its not succesfull

AppDomain ad = AppDomain.CurrentDomain;
System.Reflection.AssemblyName an = new System.Reflection.AssemblyName();
an.Name = "Childprogram";
System.Reflection.Emit.AssemblyBuilder ab = ad.DefineDynamicAssembly(an, System.Reflection.Emit.AssemblyBuilderAccess.Save);
System.Reflection.Emit.ModuleBuilder mb = ab.DefineDynamicModule("testmodule", "Childprogram.exe");
System.Reflection.Emit.TypeBuilder tb = mb.DefineType("testtype", System.Reflection.TypeAttributes.Public);
System.Reflection.Emit.MethodBuilder metb = tb.DefineMethod("hi", System.Reflection.MethodAttributes.Public | System.Reflection.MethodAttributes.Static,null, null);
            //mb.SetUserEntryPoint(metb);
            ab.SetEntryPoint(metb);
            System.Reflection.Emit.ILGenerator ilg = metb.GetILGenerator();
            ilg.EmitWriteLine("hiii worrld");
            ilg.Emit(System.Reflection.Emit.OpCodes.Ret);
            tb.IsCreated();
            ab.Save("Childprogram.exe",System.Reflection.PortableExecutableKinds.ILOnly,System.Reflection.ImageFileMachine.IA64);

but it gives an error :

Type 'testtype' was not completed.

\

what is problem?

i also tried these codes :

Microsoft.CSharp.CSharpCodeProvider cscp = new Microsoft.CSharp.CSharpCodeProvider();
System.CodeDom.Compiler.CompilerParameters cp = new System.CodeDom.Compiler.CompilerParameters();
cp.ReferencedAssemblies.Add("System.dll");
cp.GenerateInMemory = false;
cp.GenerateExecutable = true;
cp.OutputAssembly = "Childprogram.exe";
System.CodeDom.Compiler.CompilerResults cr=  cscp.CreateCompiler().CompileAssemblyFromFile(cp, @"a.cs");
if (cr.Errors.Count > 0)            MessageBox.Show(cr.Errors.Count.ToString()+cr.Errors[0].ToString()+cr.Errors[0].FileName);

but this one give me error to that is saying i dnt have a static main method in Childprogram.exe !
wheras this is my sourcefile code :

using System;
namespace RDPCracker
{
    static class Program
    {
        	static void Main()
	{
		Console.WriteLine("asd");
	}
     }
}

what is problem?
very thanks to spend time for me!