How to load a scene from disk in Standalone player

Hello all,

i'm trying since this morning to dynamically load a scene from a pc standalone player without any result, i have an error that says that le scene wasn't defined in build settings (which is what i want to be able to add new to my game without building a new player).

I'm doing the following :

First generate the asset bundle for the level.

 string[] level = new string[1];
 level[0] = "Assets/workLevel.unity";
 BuildPipeline.BuildStreamedSceneAssetBundle( level, "test", BuildTarget.StandaloneWindows) );

Also tried to build the bundle with buildplayer

 BuildOptions options = BuildOptions.BuildAdditionalStreamedScenes;
 BuildPipeline.BuildPlayer(new string[1]{"Assets/workLevel.unity"}, "test", BuildTarget.StandaloneWindows, options);    

Both of these methods leads to the same result...

When want to load my level i'm doing the following :

 string path = "file://" + Application.dataPath + "/../test.unity3d";
 WWW www = WWW.LoadFromCacheOrDownload(path,1);
 yield return www;
 Debug.Log (www.error); // gives no error
 AssetBundle ab = www.assetBundle;
 Application.LoadLevel("testserver");

The result is that no level is loaded and that an error message "Level test (-1) could'nt be loaded because it has not been added to the buildsetting... etc...

Can someone help me ? It should be possible...

Thanks by advance

Stéphane