internal DebuggerEngine (DebuggerEngineExtensionNode node)
		{
			this.node = node;
			
			foreach (string s in node.SupportedFeatures) {
				try {
					object res = Enum.Parse (typeof(DebuggerFeatures), s, true);
					if (res != null)
						SupportedFeatures |= (DebuggerFeatures) res;
				} catch {
					LoggingService.LogError ("Invalid feature '" + s + "' in debugger engine node (" + node.Addin.Id + ")");
				}
			}
		}

		public bool CanExecute (ExecutionCommand command)
		{
			SupportedFeatures = DebuggingService.GetSupportedFeaturesForCommand (command);
			return SupportedFeatures != DebuggerFeatures.None;
		}

		public static bool IsFeatureSupported (DebuggerFeatures feature)
		{
			foreach (DebuggerEngine engine in GetDebuggerEngines ())
				if ((engine.SupportedFeatures & feature) == feature)
					return true;
			return false;
		}

		public static bool CurrentSessionSupportsFeature (DebuggerFeatures feature)
		{
			return (currentEngine.SupportedFeatures & feature) == feature;
		}

 public override bool Supports(DebuggerFeatures feature)
 {
     switch (feature) {
         case DebuggerFeatures.Start:
         case DebuggerFeatures.StartWithoutDebugging:
         case DebuggerFeatures.Stop:
             return true;
         case DebuggerFeatures.ExecutionControl:
         case DebuggerFeatures.Stepping:
         case DebuggerFeatures.Attaching:
         case DebuggerFeatures.Detaching:
             return false;
         default:
             throw new ArgumentOutOfRangeException();
     }
 }

 public abstract bool Supports(DebuggerFeatures feature);

		public override bool Supports(DebuggerFeatures feature)
		{
			return true;
		}