Thank you kindly, Snowdrop, for a patch that solves:

The current API for MRM is quite sparse, this patch 
supplies basic support for accessing the task 
inventory of object.

OpenSim/Region/OptionalModules/Scripting/Minimodule/Object/IObjectInventory.cs

@@ -0,0 +1,17 @@
+
+using System;
+using System.Collections.Generic;
+
+using OpenMetaverse;
+
+namespace OpenSim.Region.OptionalModules.Scripting.Minimodule.Object
+{
+	
+	/// <summary>
+	/// This implements the methods neccesary to operate on the inventory of an object
+	/// </summary>
+	public interface IObjectInventory : IDictionary<UUID, IInventoryItem>
+	{
+		IInventoryItem this[string name] { get; }
+	}
+}