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.

1 files changed, 7 insertions, 1 deletions

diff --git a/OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IAvatar.cs b/OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IAvatar.cs
index 51ba36c..3345988 100644
--- a/OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IAvatar.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/Minimodule/Interfaces/IAvatar.cs
@@ -50,6 +50,12 @@ namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
                 //// <value>
                 /// Array of worn attachments, empty but not null, if no attachments are worn
                 /// </value>
-        IAvatarAttachment[] Attachments { get; }
+
+                IAvatarAttachment[] Attachments { get; }
+
+                /// <summary>
+                /// Request to open an url clientside
+                /// </summary>
+                void LoadUrl(IObject sender, string message, string url);
     }
 }