Remoting IIS - debugging

[nic]

Hello,

I wrote a client, a servercomponent and a component that
hosts the servercomponent. Everything works fine.

Now, I will host the servercomponent via IIS.
So, I changed a few things in the clientapp but not in
the servercomponent + I did the steps for the IIS.
(I only brought the servercomponent.dll to the bin-
directory)
When I run I have always an TargetInvocationException.

How can I debug the servercomponent?

My servercomponet didn't change why I have an error now
and not in the first situation.

Thanks,
Nic