<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: Windows IIS Application Sensor

The Windows IIS Application sensor monitors a Microsoft Internet Information Services (IIS) server via Windows Management Instrumentation (WMI). It can also monitor applications that use IIS, such as Microsoft SharePoint or Microsoft Reporting Services (SSRS).

Windows IIS Application Sensor

Windows IIS Application Sensor

i_square_cyanFor a detailed list and descriptions of the channels that this sensor can show, see section Channel List.

Sensor in Other Languages

  • Dutch: Windows IIS Toepassing
  • French: Windows IIS application
  • German: Windows IIS-Anwendung
  • Japanese: Windows IIS アプリケーション
  • Portuguese: Aplicativo Windows IIS
  • Russian: Приложение Windows IIS
  • Simplified Chinese: Windows IIS 应用程序
  • Spanish: Aplicación IIS Windows


Consider the following remarks and requirements for this sensor:




  • This sensor requires WoW64 (Windows 32-bit on Windows 64-bit) for target systems that run Windows Server 2016.


  • This sensor requires credentials for Windows systems.

Performance counters

  • The sensor cannot return data for the channels Status, Uptime, and Total when using performance counters. We recommend that you use WMI only (default) as Preferred Data Source in the Windows Compatibility Options of the parent device.


  • This sensor supports IPv6.

Performance impact

  • This sensor has a medium performance impact.

Hosted probe

i_podYou cannot add this sensor to the hosted probe of a PRTG Hosted Monitor instance. If you want to use this sensor, add it to a remote probe device.

Basic Sensor Settings

Basic Sensor Settings

Basic Sensor Settings

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

  • wmiiis

i_square_cyanFor more information about basic sensor settings, see section Sensor Settings.

Windows Internet Information Services

Windows Internet Information Services

Windows Internet Information Services




The unique instance name of the web service that this sensor monitors.

Debug Options

Debug Options

Debug Options



Result Handling

Define what PRTG does with the sensor result:

  • Discard result (default): Do not store the sensor result.
  • Store result: Store the last sensor result in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file name is Result of Sensor [ID].Data.txt. This setting is for debugging purposes. PRTG overwrites this file with each scanning interval.

i_round_blueIn a cluster, PRTG stores the result in the PRTG data directory of the master node.

Sensor Display

Sensor Display

Sensor Display



Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

i_round_blueYou can set a different primary channel later by clicking b_channel_primary below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

  • Show channels independently (default): Show a graph for each channel.
  • Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
    i_round_redYou cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Inherited Settings

By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click b_inherited_enabled under the corresponding setting name to disable the inheritance and to display its options.

i_square_cyanFor more information, see section Inheritance of Settings.

Channel List

i_round_blueWhich channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.



Anonymous Users

The number of anonymous users

Bytes Received

The number of bytes received

Bytes Sent

The number of bytes sent

i_round_blueThis channel is the primary channel by default.

CGI Requests

The number of CGI requests


In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status

Files Received

The number of files received

Files Sent

The number of files sent

Get Requests

The number of GET requests

Known Users

The number of known users

Not Found Errors

The number of not found errors

Post Requests

The number of POST requests


The web service status

  • Up status: Running
  • Down status: Stopped


The total


The uptime


i_square_blueKNOWLEDGE BASE

What security features does PRTG include?

My Windows sensors do not work when using direct performance counter access. What can I do?