If you have Visual COBOL and Net Express or Studio Enterprise Edition installed on the same machine, you sometimes receive a run-time system error if the COBCONFIG environment variable is set when you run Visual COBOL applications the configuration file it refers to contains entries that are not valid for Visual COBOL.
To work around this issue, ensure that Visual COBOL is not running and then modify the configuration file by doing one of the following:
set cobconfig_error_report=false