Symptoms

If you have a version of adTempus installed on a computer and try to install an older major version without first removing the newer version, the installer may display the following error message:

Error 2869. The dialog SetupError has the error style bit set, but is not an error dialog.

Cause

This error is displayed because:

  • Downgrade installations (installing an older version of the software when a newer version is already installed) are not supported, and
  • A flaw in the adTempus installer causes it to display this message instead of the correct error message.

Resolution

To install the older version of the software you must first uninstall the newer version. After installing the older version, you can reinstall the newer version if desired.

More Information

Side-by-side installations (two major versions of adTempus installed on the same computer) are supported beginning with adTempus 4 (more information). However, the older version must be installed before the newer version.