Comments by Member 10062996 (Top 3 by date)

The Returned Error Code 0x80040202, But, still, it works in one PC, and not in the another PC.

Returned Error Code 0x80040202


A search of the Microsoft Knowledge Base indicates that error code 0x80040202 is a "CONNECT_E_CANNOTCONNECT" error. This error is returned when the server calls the IConnectionPoint::Advise (Server) method and fails. The Knowledge Base indicates that this can happen when the common file "OPCProxy.dll" is out of sync with other common OPC files. This can occur when users attempt to update the server, but the update fails. It can also occur when users install another OPC application that changes one of the files that are used but not all of them.