CICS® Transaction Gateway and CICS Universal Client append directories to the LIB and INCLUDE variables only in the system set, to ensure that these are used you should add ;%LIB% to the end of your user LIB environment variable and ;%INCLUDE% to the end of your user INCLUDE environment variable. The CICS Transaction Gateway appends ;%CLASSPATH% to your user CLASSPATH environment variable. When you select OK on the Edit user variable window to make this change, the variable is displayed with the system paths appended.