Add to that support for the generic eml mail format and you got a viewer that can view pretty much any mail format that has been used by Microsoft in its mail programs. The software program will display a wizard aiding the user in locating and opening one of the mail databases.

It should be noted that the program is only able to open mail databases from the logged in user. The only other option is to open eml files which work by pasting a path into the application.

The only possible way to display the emails from another user is to export those mails into the eml format so that they can be opened with mail viewer. That’s not really practicable as it would probably be easier to import those mails directly into a portable email client.

Mail Viewer can display all email messages in detailed view including attachments with the option to save those and html preview & printing options. Selected messages can be saved to the eml format. This makes Mail Viewer interesting for users who want to export selected mails from a large Windows Live Mail or Microsoft Outlook email database.

All email clients that I know support eml files which makes it a breeze to import mails of all Outlook Express users into another mail client. In the case of Thunderbird the extension ImportExportTools is required to import the eml files.

The Outlook Express Message Extractor [link] is a small utility that can convert a source Outlook Express dbx file into an eml file. The application supports drag and drop and directory browsing. EML files are Outlook Express Electronic Mail files by the way.

The process will extract all messages in a single dbx file into separate eml files which means that a dbx file with 100 mails will result in 100 eml files in the selected target directory. The homepage of the developer is in German, the program interface itself is in English.