Hi All

Already developed client(Developi ng for OPC) I am having code like below

1. OPCserverObj = Activator.Creat eInstance( typeofOPCserver );

2. ifServer = (IOPCServer) OPCserverObj;

// connect all interfaces
3. ifCommon = (IOPCCommon) OPCserverObj;
4.ifBrowse = (IOPCBrowseServ erAddressSpace) ifServer;
5.ifItmProps = (IOPCItemProper ties)...