What Happens to MES Web Portal Customization Files During an Uninstall

If you uninstall MES on a node on which the MES Web Portal is installed, during the uninstall operation the existing MES Web Portal content will be backed up to save any custom web files. This option allows web files that might have been added to the MES directory for MES Web Portal customization to be retained.

The MES Web Portal content will be backed up to the <MES program files path>\Wonderware\MES\Web Portal\MES (archive <timestamp>) folder, where <timestamp> is the date and time when the uninstall was completed. Any custom web files are stored in this directory.