I need that. I would like to implement comm status and fault status awareness in WINE's rpcrt4, because my applications crash in WINE because of the lack of proper comm status and fault status awareness in WINE's RPC implementation. From debugging NdClientCall2 in XP I deduce I need this.
I hate to be the one to break it to you, but debugging ndrclientCall2 in XP precludes you from contributing to wine's implementation. --Juan