Do you have to convert all macro-level COBOL programs to CICS TS, Version 2 or later before they can be run with Language Environment?
Yes. You cannot run macro-level COBOL programs in CICS TS Version 2.
Is Language Environment required to run a program compiled with Enterprise COBOL?
Yes, Language Environment contains the library routines required to run an Enterprise COBOL compiled program. Enterprise COBOL is a compiler, and does not contain runtime library routines.