Need ConfigurationManager example code

[Mark Ingram]

Hi all, having a real struggle using the ConfigurationManager class, i
want to be able to save user specific information to the configuration
file, i try to use:

Configuration config =
ConfigurationManager.OpenExeConfiguration(Configur ationUserLevel.PerUserRoamingAndLocal);

config.AppSettings.Settings.Add("KeyTest", "KeyValue");
//config.SaveAs(config.FilePath);
config.Save();

But it crashes because the config.FilePath doesnt exist (neither does
the directory that the file is supposedly in).

(The config.FilePath = C:\Documents and Settings\<me>\Local
Settings\Application
Data\<app>\<app>.vshost.exe_Url_aif3rzcpslr4ltlzn5 wf5dznoaxbcaxf\1.0.0.0\user.config)


What im trying to do is save application specific data (such as server
to connect to) in the application directory, then user specific data
such as window colours in the application data folders.

How can i do this?

Thanks,

Mark