PegaReach is a windows based client which connects with the PegaWorks server. Users who has UNIX based PegaWorks servers 7.x and 8.x, connects the server from windows system using PegaReach client. And Mainframe based users use another client software called PegaViewAce to connect. CICS seems to be related to Mainframe and I am not sure how are you connecting it through PegaReach and what type of application you are running. If you are running Mainframe/VAX/VMS variant of PegaWorks server then I would recommend you to open Support ticket to get the required answers, as these are legacy products.