This article discusses why there are cases wherein when you apply the license to the Log Viewer application, the license works but when you log out and log back in, it shows as evaluation.
Kiwi Syslog Log Viewer version 2.1.0
When applying the Log viewer license, there are two options:
Note: This is not the standard license key used in most Solarwinds products. It consists of a serial number and license.
If the user does not have sufficient permission to write to the registry, the license will not apply correctly and the registration key will not write to the registry. You must be logged in as an administrator to perform this task.
Warning: Consult your System Administrator before performing this procedure.