Mike,

>The registry keys are in place as expected (I didn't clearly state this in my original post), but still no display of any MM Infragistics controls to add to the toolbox.

What about the values of the registry keys? Are they pointing to the correct directories? If you look in the directories specified in the registry keys do you see the expected DLLs? Visual Studio will look in the specified directories and list any .NET assemblies that it finds.

Best Regards,