Hi there, I downloaded RDCOMServer and the related packages from Omegahat. Tried their "R.Evaluator" example. But failed to invoke any method from the client side. When I looked at R.Evaluator from OLE View (some Microsoft development tool for browsing all the OLEs), I got the following error message from R.Evaluator: CoGetClassObject failed Class not registered REGDB_E_CLASSNOTREG ($80040154) RDCOMServer's isRegistered method said R.Evaluator was registered. So, what's wrong? Thanks.