Non-Admin & VS2005

I've had mixed success with the NUnitAddIn installation issues.  I've tried to make it so that an administrator can do and install for all non-admin users.  According to the documentation Visual Studio does supports this, but so far I haven't been able to get it working.  I even created a noddy add-in using the 'Extensibility Project' wizard, but even this wouldn't work for non-admin users.  Are there any add-ins out there that work for non-admin users?

I've had better luck getting it to work with Visual Studio 2005.  I haven't uploaded it for general consumption yet as there are a couple of minor quirks you will need to need to be aware of (I now know what Don Box means about VS2005 having several "trip wires").  If you are interested in trying it just drop me a line and I'll send a link along with some notes.

Does anyone know if .NET 1.1 will work with any 2.0 assemblies?