We recently introduced a new installer which allows LogViewPlus to be installed without Admin permission.  Unfortunately, this is a breaking change with the previous installer.  For users wishing to upgrade to 2.5.37 or later versions, we recommend uninstalling previous versions of LogViewPlus before installing the latest.  

It is not necessary to export your application settings before upgrading, but this approach is always recommended.  As a rule, if you are worried about losing data it is good to have a backup copy.

We still recommend installing LogViewPlus as Admin.  This allows LogViewPlus to install assemblies into the GAC which will improve performance.  However, we understand that this is not always an option.  An admin-free installation is now the default.