richlm,

See:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/managedMMC_MRef
/html/P_Microsoft_ManagementConsole_SnapInSettingsAttribute_ConfigurationFile.as
p?frame=true

Eric
 Option 2 seems to work OK so I'll post some code snippets for the benefit of others.
 Still if anyone has additional comments please post.

 private static List<System.Configuration.Configuration> _configurations = null;

 ...

 // check the default configuration

 object config = ConfigurationManager.GetSection(sectionName);

 if (config == null)

     {

     // check the alternative configurations

     if (_configurations == null)

         LoadConfigurations();

     foreach (System.Configuration.Configuration cfg in _configurations)

     {

         config = cfg.GetSection(sectionName);

         if (config != null)

             break;

     }

  }

 ...

 private static void LoadConfigurations()

 {

     _configurations = new List<System.Configuration.Configuration>();

     string path = Assembly.GetCallingAssembly().CodeBase;

     string folder = Path.GetDirectoryName(path);

     string processName = System.Diagnostics.Process.GetCurrentProcess().ProcessName;

     ExeConfigurationFileMap map = new ExeConfigurationFileMap();

     // check for [host-exe].config in the same folder as the calling assembly

     string configFile = Path.Combine(folder, processName + ".exe.config");

     if (File.Exists(configFile))

     {

         map.ExeConfigFilename = configFile;

         _configurations.Add(ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None));

     }

     // check for mycompanyname.config in the same folder as the calling assembly

     configFile = Path.Combine(folder, "mycompanyname.config");

     if (File.Exists(configFile))

     {

         map.ExeConfigFilename = configFile;

         _configurations.Add(ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None));

     }

 }

 "richlm" <richlm@nospam.nospam> wrote in message news:eremtsLVGHA.4792@TK2MSFTNGP14.phx.gbl...
 > I'm developing a snap-in for MMC 3.0 using .Net framework 2.0 and the new
 > MMC class library.
 >
 > I need to store some configuration settings, ideally in a .config file
 > associated with my snap-in dll.
 >
 > A couple of possible solutions:
 > 1. Deploy an mmc.exe.config to %windir%\System32 - not really a workable
 > solution.
 >
 > 2. Open a configuration file explicitly as a "Configuration" instance using
 > e.g. ConfigurationManager.OpenMappedExeConfiguration. That's almost OK - but
 > the config file either needs to be in System32 or we have to hard-code a
 > path (or maybe get the path from Assembly.CodeBase).
 >
 > The same issue would apply to other non-standard dll hosts.
 > Can anyone recommend a better approach?
 >
 > Richard.
 >
 >