ScanMail for Microsoft Exchange backup exclusion

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2005-12-15

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine the files and folders that have been excluded from backups using Windows Backup:


The Exchange Server Analyzer specifically looks for a string that contains "SMEX\DATA".

If the Exchange Server Analyzer finds that the FilesNotToBackup key contains a value that contains the string "SMEX\DATA", the Exchange Server Analyzer displays a warning.

If you are not using Windows Backup, you can safely ignore this warning. If you are using Windows Backup, it is recommended that you remove the exclusion for the SMEX\DATA directory. Trend Micro recommends that users backup all files in this folder that have a .mdb file name extension. The backup files can be used in the event the production .mdb files in the SMEX\DATA folder become corrupted or are deleted.

This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.
To correct this warning
  1. Open a registry editor, such as Regedit.exe or Regedt32.exe.

  2. Navigate to: HKLM\System\CurrentControlSet\Control\BackupRestore\FilesNotToBackup

  3. Select FilesNotToBackup in the left pane.

  4. In the right pane, right-click the value that contains the string "SMEX\DATA" and select Delete.

  5. Close the registry editor.

Before you edit the registry, and for information about how to edit the registry, see Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows registry" (