MDaemon® Email Server
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      How do I upgrade to the 64-bit version of MDaemon?

      Upgrading MDaemon from the 32-bit to 64-bit is simple!

      Upgrading to the 64-bit versions of MDaemon is as easy as downloading and running the MDaemon 64-bit install files over top of the existing installation.
      • Be sure to install the same MDaemon version of the 64-bit software.
      • The application pools will need to be deleted and rebuilt if WorldClient, BIS, or ActiveSync  are running under Internet Information Services (IIS) and not using MDaemon's built-in web-server.  
        - Search our Knowledge Base for articles on running these services in IIS