Config file deletion on Close() with System.Configuration

[Jouan]

Hi,

Here is my code

 
class ConfigFile 
    {
        public void AddToConfig(string drive, string path)
        {
           System.Configuration.Configuration config = 
                ConfigurationManager.OpenExeConfiguration(
                ConfigurationUserLevel.None);
 
            config.AppSettings.Settings.Add(drive, path);
            config.Save();
        }
 

When I call this method, the file is created and filled correctly.
The file is valid all along the program but is deleted automatically when the program closes.
The only way I found to prevent that is setting the file in read-only before the application closure. Not really clean though...

How can I manage to keep the file after closure?

Thanks ;)