Open web.config from console application?

Question

I have a console capplication that runs on the same computer that hosts a bunch of web.config files. I need the console application to open each web.config file and decrypt

Answer 1

    public static string WebKey(string key)
    {

        var configFile = new System.IO.FileInfo(webconfigPath);
        var vdm = new VirtualDirectoryMapping(configFile.DirectoryName, true, configFile.Name);
        var wcfm = new WebConfigurationFileMap();
        wcfm.VirtualDirectories.Add("/", vdm);
        System.Configuration.Configuration config = WebConfigurationManager.OpenMappedWebConfiguration(wcfm, "/");
        System.Configuration.AppSettingsSection appSettingSection = (System.Configuration.AppSettingsSection)config.GetSection("appSettings");
        System.Configuration.KeyValueConfigurationElement kv = appSettingSection.Settings.AllKeys
                         .Where(x => x.Equals(key))
                         .Select(x => appSettingSection.Settings[key])
                         .FirstOrDefault();

        return kv != null ? kv.Value : string.Empty;

    }