Use the compiler flags inside Visual COBOL designed to emulate Net Express behavior during the transition phase.
Even with a legitimate copy, you will find no official support for Net Express 5.1. However, these communities can help: microfocus cobol net express 5.1 download
To help find the right resources, please let me know your goal: Use the compiler flags inside Visual COBOL designed
Micro Focus (now part of OpenText) has officially retired and withdrawn Net Express 5.1 from active distribution. Official Support Status End-of-Life (EOL). you will likely encounter:
If you need version 5.1 to maintain an older system but do not see it in your portal: Contact an OpenText account representative.
If you search for "MicroFocus COBOL Net Express 5.1 download" , you will likely encounter: