ACC: "Unexpected Error from External Database Driver [20]"

• Microsoft Access versions 1.1, 2.0

SYMPTOMS

Moderate: Requires basic macro, coding, and interoperability skills.

When you are using the network loadable module (NLM) version of Btrieve and try to import, export, or attach a Btrieve table you receive the error message "Unexpected error from external database driver [20]."

CAUSE

Btrieve returns this error message if you try to gain access to Btrieve data with Microsoft Access before loading the Brequest.exe program. The Xtrieve manual lists this error with the following description:

   20  Record Manager inactive.
       You made a request before starting the Record Manager.
       Restart the Record Manager.

RESOLUTION

You must start the Brequest.exe program before starting Microsoft Windows. You may want to create a batch file to run the Brequest.exe program before starting Windows.

This error can also occur if the NLM version of the Wbtrcall.dll file is used on a non-NLM version of Btrieve. The NLM version of Wbtrcall.dll is approximately 13 kilobytes (K), while the non-NLM version of Wbtrcall.dll is approximately 51K. Verify that the NLM version of Wbtrcall.dll is not in the path prior to the non-NLM version to ensure that the correct version is in use.

REFERENCES

For a complete list of Xtrieve error messages, refer to the Novell Xtrieve manual, Appendix A.

Btrieve is manufactured by Btrieve Technologies, Inc., a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.