Hi, if u are going to use your server class directly in your cliend , then u shall use soapsuds to extract the type information, add reference to it and then include the namespace. But in any remoting scenario, it is recommended to go with a Common interface / abstarct class between client and the server and thereby adding reference to the dll containing the interface / abstract class. Make your remoting server class implement the interface / inherit the abstract class, Hope this helped you. Love all,