New Question
PRTG Network Monitor

Intuitive to Use.
Easy to manage.

200.000 administrators have chosen PRTG to monitor their network. Find out how you can reduce cost, increase QoS and ease planning, as well.

Download >>


What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general. You are invited to get involved by asking and answering questions!

Learn more


Top Tags

View all Tags

My Performance Counter sensor does not work. What can I do?



Your Vote:



I created a PerfCounter Custom sensor to monitor several performance counters on my operating system. Unfortunately, I get the error message The specified object is not found on the system. (Performance Counter error 0xC0000BB8).

I am sure that the paths to the specific counters are correct. When viewing the desired counters via Windows’ “Performance Monitor” interface, everything looks fine. Also, I can add some of the counters that are available from within Windows to PRTG which works perfectly. So, where are my performance counters in PRTG?

error error-messages perfcounter perfcounter-custom perfmon performance-counters prtg

Created on Jan 27, 2014 3:55:59 PM by  Gerald Schoch [Paessler Support]

1 Reply

Accepted Answer



Your Vote:



This article applies to PRTG Network Monitor 13 or later

Remote Monitoring of Specific Performance Counters

The PerfCounter Custom sensor can monitor a set of Windows Performance Counters which you can define individually. You can find available PerfCounters on your system via PerfMon as outlined in this article.

If your PRTG probe with the PerfCounter sensor runs on another server then the applications whose performance counters you want to monitor, there might be an issue with the remote access. Try to access the counters remotely with PerfMon from the machine running PRTG: If you can see some system counters (for example, processor information, SQL server, etc.) but not the desired application counters, a manual start of the Performance Counter DLL Host (perfhost.exe) windows service can help.

This service enables remote users and 64-bit processes to query performance counters provided by 32-bit DLLs. If it is not running (default), only local users and 32-bit processes will be able to query performance counters provided by 32-bit DLLs.

For details, please refer to the article Where are my performance counters? on the Windows SDK Support Team Blog.

Created on Jan 27, 2014 3:57:29 PM by  Gerald Schoch [Paessler Support]

Please log in or register to enter your reply.

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.