Contiguous, Formatted, Indexed-Contiguous, and text files may be exclusively opened using the EOPEN statement ('EOPN #1,"filename"') or the "E" open access mode ('OPEN #1, "filename"').
This error can occur if the program was created using a later version of dL4. Usually, this will only happen if the program uses a feature of that later dL4 version which is not supported in the local copy of dL4.
The commands "WB" and "WT" in the SCOPE debugger move the debugger window to the bottom ("WB") or the top ("WT") of the screen. The "WINDOW" command can also be used to move the debugger window. Note that, in dL4 for Unix, a debugger window is only used if dL4 windows are open.
The runtime parameters are set in the Windows Registry setting keys HKEY_CURRENT_USER\Software\DynamicConcepts\dL4\Environment or HKEY_LOCAL_MACHINES\Software\DynamicConcepts\dL4\Environment.