Should you encounter an error in the execution of your program, you can use the debugging facilities in AcuBench or ACUCOBOL-GT to investigate the problem. Once the debugger is running, it may be helpful to use the tf option to turn on file tracing. Included in the file trace are all calls to esqllib.dll and asqlsrvr.dll. To generate the most detailed level of file tracing, follow tf with the number 9. See Handling Program Execution Problems and Debugger and Utilities in the ACUCOBOL-GT User's Guide for a detailed description of debugger options and use.