Rocket (formerly Microfocus) Enterprise Server requires a wrapper library compiled with the MF COBOL NOCANCEL option which holds the FairCom RTG library in process. The files and build script to perform this task are included in the drivers/ctree.cobol/samples/extfh/enterprise folder of your FairCom RTG installation. This wrapper library only needs to be compiled once, and it is the library that is referenced from your fhredir configuration. Be default, we build this wrapper library as ESCTEXTFH.so (linux). The FairCom RTG CTEXTFH.so library is then referenced from it, and both objects need to be in your configured shared library path of your Enterprise Server installation. We recommend copying the EXCTEXTFH.so to the ES library folder, and from there a symbolic link of CTEXTFH.so to the FairCom RTG installation. This way it is easy to install new RTG versions as required.