Using a interface in a DLL file

Hi All!

Have a interface like this:

public interface IPropertiesContainer
{
   /**
    * Get the value of the specified property,
    * or null if it is undefined.
    */
   string GetProperty ( string propertyName );

   /**
    * Set the value of the specified property. If value is null
    * the property will be deleted. If the property already exist
    * it will be updated, else it will be added.
    */
   string SetProperty ( string propertyName, string value );

   /**
* Reload all properties from the specified file path.
* All current properties will be discarded before loading.
* Throw an IOException in case of any error.
*/
   void LoadFilename1 ( string path );

   /**
* Write the current content to the specified file path.
* Throw an IOException in case of any error, or if the
* argument "allowOverwrite" is false and the file
* already exist.
*/
   void WriteFilename2 ( string path, bool allowOverwrite );
}


And from this interface i have made a DLL-file.

But my question is how to implement this DLL file in a new project in visual studio 205.
Olso need help on understanding this functions:

1. string GetProperty ( string propertyName );
2. string SetProperty ( string propertyName, string value );
3. void LoadFilename1 ( string path );
4. void WriteFilename2ToIniFile ( string path, bool allowOverwrite );

Hope sombody can help me out here...

Thanks




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