google desktop gadget registering a .net 2.0 dll

Question

I am trying to create a gadget which uses a COM visible .net 2.0 dll. And I have been trying to make it work since last one week.

Here are a few instructions that I found to make it work:
http://markmail.org/message/jkbjk2kjbyyqozc6

But I am not able to understand the 3rd step. I have manually registered the dll classes in the registry and than trying to create an Activex object but I always get an object Error.

One thing that I found is that the Public Key Token is null in the registry, can this be a cause?

Thanks in advance.