>You might want to checkout wwDotnetBridge which allows accessing .NET components without registration through RegAsm...
>
>It's now free and open source:
>
>http://west-wind.com/wwDotnetBridge.aspx
>
>and there's a white paper that explains plain COM interop (what you're doing) and how you can do that and much more with wwdotnetbridge:
>
>http://west-wind.com/presentations/wwdotnetbridge/wwDotnetBridge.pdf

Thank you