Configuration file for each dll

[StefaniaO]

Hi all, I have a question about configuration file of an application.
I have an exe file plus a number of dll (classl ibrary) that I dinamically load. I have a unique config file that I modify when I have to add a new dll.
Instead I want to handle a file for each dll.
I tried with linkedConfiguration but it did work.
Th piece of code I use to access section information in the general app.config is:

IDictionary sourceConfig = (IDictionary)
ConfigurationManager.GetSection("CUCM6AD/CUCM6AppUserDevPoolMapping");

I tried also with:
ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap();
fileMap.ExeConfigFilename = System.IO.Directory.GetCurrentDirectory() + @"\FARSync_CUCM6ADBL.dll.config";
System.Configuration.Configuration config =
ConfigurationManager.OpenMappedExeConfiguration(fi leMap,
ConfigurationUserLevel.None);
ConfigurationSection section = config.GetSection("CUCM6AD/CUCM6AppUserDevPoolMapping");

but I can't cast the ConfigurationSection to IDictionary...
Any ideas ??
Thank you very much