In the compatibility matrix, COBOL NetExpress 4.0 is supported on Windows Server 2003 R2 in version 9.0.0. Does this mean all current versions of LSF9 9.0.0.x? Yet in the installation guide for LSF 9.0.0.8 the supported COBOL NetExpress is 5.0 and 5.1. We're on LSF9.0.0.5 with Financial application 9.0.0.6 and use COBOL NetExpress 4.0. When should an upgrade to COBOL NetExpress 5.0 or 5.1 take place?