Run-time System Differences

OpenESQL
Visual COBOL sets the BEHAVIOR SQL Compiler directive option to MAINFRAME by default to provide optimal performance. To revert to the default behavior exhibited in Net Express, Server Express, set the BEHAVIOR directive to UNOPTIMIZED.

Single-Threaded Run-Time System
The single-threaded run-time system is not available in Visual COBOL on Windows. Instead, both single-threaded and multi-threaded applications run using the multi-threaded run-time system. This has no effect on your existing applications. On UNIX, the single-threaded run-time system is available, so that applications can link with third-party code.

Static-Linked Run-Time System
The static-linked run-time system is not available in Visual COBOL. Instead, you now link native code to the shared or dynamic run-time system. This has no effect on your existing applications.

Setting the environment on UNIX
You use the cobsetenv script to set your COBOL environment on UNIX if you have installed the product to a directory other than the default one.

Visual COBOL Co-existing with Earlier Micro Focus Products
Some additional configuration is required to ensure Visual COBOL and Net Express or Studio Enterprise Edition work properly when installed on the same machine.