Dictionary<string, string> providerOptions = new Dictionary<string, string>
            {
                {"CompilerVersion", "v3.5"}
            };
        CSharpCodeProvider provider = new CSharpCodeProvider(providerOptions);

        CompilerParameters compilerParams = new CompilerParameters
        {
            GenerateInMemory = true,
            GenerateExecutable = false
        };

        compilerParams.ReferencedAssemblies.Add(Assembly.GetEntryAssembly().Location);