We have just installed PRTG on a new build of Windows Server 2012.
It all works great apart from a warning event log in the Microsoft >> Windows >> ServerManager-ManagementProvider >> Operational event log.
Normally I wouldn't worry about this but it causes the server manager to report manageability errors with the server.
The event log is:
Generic failure querying the localized name for channel: PRTG Network Monitor [hResult = Function failed during execution., hLastResult = The system cannot find message text for message number 0xPRTG Network Monitor in the message file for Function failed during execution..].
Event ID: 46 Source: ServerManager-ManagementProvider Task Category: Get server inventory task
There is a post on technet with others receiving the same error: