Hi all again, I've polished https://github.com/cibercitizen1/zmqHelper and documented the file: zmqHelper.h It provides a clean interface to program with, and it has been tested with: + REQ-REP + PUB-SUB + chat: REQ-REP + PUB-SUB + REQ-ROUTER-DEALER-REP + inproc REQ-REP with several threads Fell free to make any criticism/suggestion. Thanks, ciber