>Is there a way to implement MM security (ControlID etc) on individual mmUltraWebMenu Items? I tried changing the declarative tags from "<ignav:Item" to "<mminf:Item" but I noticed that the Mere Mortals Framework Infragistics Web Controls library doesn’t subclass Infragistics.WebUI.UltraWebNavigator.Item. Is there an Extender Provider model to use for Infragistics menus or some other way to accomplish this? --something like mmMenuExtender?

You're right...we currently don't have an implementation for Web menu items...just the menu itself. You can use extender providers in ASP.NET although they are a bit different than Windows Forms. I'll add this to our "desired features list" but it will be quite a while before it's implemented. If you want to read about how you might implement this yourself, here's a good article on the subject: http://www.codeproject.com/aspnet/ExtenderProviderComponent.asp.

Regards,