gistfile1.cs

// Had to modify the ScriptCs ScriptExecutor to include System.Configuration
// It works as expected to get the appSettings, but not the natural way
// most devs will be used to with ConfigurationManager.AppSettings, also
// not sure if things like SmtpClient will pickup on it.
using System;
using System.Configuration;

var path = Environment.CurrentDirectory + "\\app.config";
Console.WriteLine(path);

var configMap = new ExeConfigurationFileMap {ExeConfigFilename = path};
var configuration = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);
var settings = configuration.AppSettings.Settings;

Console.WriteLine("name from configuration is : {0}", settings["name"].Value);
Console.ReadKey();