Layton ServiceDesk - Release Notes - Version 6.5.7
From Layton Support
Upgrading
ServiceDesk v6.5.7 is a minor release of the product. The upgrade may be applied to any version of 6.2.0 or later.
Please log in to the client support portal to download the upgrade installer. To install the upgrade, first extract all files from the archive, back up your database, stop the IIS Admin service, stop the LaytonServiceDesk service, and finally, run the upgrade installer lsd657_upgrade.exe. We recommend that you right-click the installer and select Run as administrator to avoid permission issues.