DEX policies for Windows devices

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  • Updated March 12, 2026
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    Summary of DEX policies for Windows devices

    DEX policies for Windows devices enable ServiceNow customers to monitor application, network, and device performance metrics efficiently. These policies collect detailed data and send it to Metric Base or the ServiceNow instance for analysis. Proper setup requires the Agent Client Collector (ACC) to run as a local system account to access comprehensive metrics.

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    Application Monitoring

    DEX provides policies to collect application metrics such as CPU usage, memory use, uptime, crashes, and I/O statistics every 5 minutes with a historical perspective. Specific policies are available for Microsoft System Center Configuration Manager with daily updates. Note that uptime monitoring requires the ACC to run as a local system account.

    Application Network Experience

    These policies monitor network performance metrics (latency, packet loss, jitter) for installed and web applications every 10 to 30 minutes. Requirements include ACC version 4.2+ and DEX browser extension version 2.5.0+. Limitations include inability to trace paths with domain URLs due to the use of the tracert command.

    Device Monitoring

    Device policies collect comprehensive system metrics such as uptime, antivirus/firewall status, disk and CPU details, battery and power info, stability, pending updates, network profiles, GPU usage, and more. Data is collected at intervals ranging from 5 minutes to 24 hours, depending on the metric. Some parameters (e.g., energy consumption, BitLocker details) require the ACC running as a local system account.

    Change Monitoring Policies

    • Online Windows user on change: Captures logged-in user data every 60 seconds upon changes.
    • Device configuration on change: Captures device configuration whenever changes occur, also every 60 seconds.

    Important Considerations

    • The ACC must run as a local system account to enable full metric collection for certain parameters.
    • Ensure ACC and browser plugin versions meet the minimum requirements for network monitoring.
    • Be aware of limitations in network path tracing for domain URLs.
    • If you experience policy update issues after upgrading the DEX Content Playbook plugin, consult the ServiceNow knowledge base article KB1586917 for troubleshooting guidance.

    Policy reference for DEX monitoring on Windows devices. Use this reference to understand available check instances, frequencies, and parameters for application, network, and device monitoring.

    To fetch the complete playbook data for a Windows device, the Agent Client Collector (ACC) must run as a local system account. For more details on how to set up the ACC service as a local system account, see Run ACC as a local system account user.

    Policies for Windows — Application

    DEX provides the following policies for applications.
    Table 1. DEX Windows Apps Metrics
    Check instance Description Frequency Historical or latest Check instance parameters*
    os.win.check-app-historical Collects the application metrics in the Windows device and sends the metric data to Metric Base. 5 mins Historical cpu_usage, memory_usage, uptime, last_access_time, crashes, io_usage_read, io_usage_write, is_running, freezes,zscaler_service_status
    os.win.check-app-sccm-latest Collect application-specific metrics for the Microsoft System Center Configuration Manager app on theWindows device. 24 hours Latest Not applicable
    Important:
    * DEX Windows Apps Metrics with the uptime check instance parameter only runs with the Local System account.

    Policies for Windows — Application Network Experience

    Before configuring the following policies, make sure that the Agent Client Collector is version 4.2 or higher to display the network path for applications. Additionally, the DEX browser extension plugin must be installed and should be version 2.5.0 or higher to fetch network metrics for web applications.
    Note:
    These policies have the following limitations:
    • A tracert command is used to get the network path.
    • ANE doesn't work for path in the domain URL. Example: <domain>/<path>
    DEX provides the following policies for applications.
    Table 2. DEX Windows Apps Domain Network Monitoring Metrics
    Check instance Description Frequency Historical or latest Check instance parameters
    os.win.check-app-dom-network-historical Collects Windows installed apps network monitoring metrics like latency, packet loss, and jitter and sends monitoring data to Metric Base and the ServiceNow® instance. 10 mins Historical domain_network_details
    os.win.check-web-app-dom-net-historical Collects Windows Web apps network monitoring metrics like latency, packet loss, and jitter and sends monitoring data to Metric Base and the ServiceNow instance. 10 mins Historical domain_network_details
    os.win.check-app-dom-network-latest Collects Windows Web apps network monitoring metrics like latency, packet loss, and jitter and sends monitoring data to Metric Base and the ServiceNow instance. 30 mins Latest source_details, domain_network_route_details

    Policies for Windows — Device

    DEX provides the following policies for devices.
    Table 3. DEX Windows Device Metrics
    Check instance Description Frequency Historical or latest Check instance parameters*
    os.win.check-system-metrics-latest Collects Windows device metrics and sends the metric data to the ServiceNow instance. 24 hours Latest uptime, logged_in, antivirus_enabled, firewall_enabled, disk_details, device_details, battery_details, bsod_details, cpu_details, os_details, power_plan, stability_index, pending_updates, network_details, bitlocker_details, user_profiles, antimalware_details, hard_drive_status, peripheral_devices_details, cpu_usage, memory_details, device_events, last_access_time, os_setup_details,bios_details, network_connection_profiles, network_adapter_details,gpu_usage, gpu_vram_usage,boot_details
    Important:
    * DEX Windows Device Metrics with the following check instance parameters runs only with a Local System account: energy_consumption, bitlocker_details, last_access_time, pending_updates, user_profiles.
    os.win.check-system-metrics-historical Collects Windows device metrics and sends the metric data to MetricBase. 30 mins Historical network_connection_profiles
    os.win.check-system-metrics-historical Collects Windows device metrics and sends the metric data to MetricBase. 5 mins Historical disk_usage, io_usage_write, io_usage_read,cpu_usage, battery_charge_percentage, energy_consumption, memory_details,uptime, disk_details, cpu_performance_details, crashes, power_consumption, wifi_transmit_rate, wifi_receive_rate, wifi_signal_strength
    os.win.check-process-data Collects data for running Windows processes and sends the data to the ServiceNow instance. 24 hours Not applicable Not applicable
    os.win.check-sys-compliance-historical Collects Windows device metrics and sends the metric data to the ServiceNow instance. 5 mins Historical Not applicable
    os.win.check-sys-compliance-latest Collects Windows device metrics and sends the metric data to the ServiceNow instance. 24 hours Latest Not applicable
    os.win.check-system-executables-latest Collects all the executables present on all volumes of a Windows device. 24 hours Latest config_file_read
    os.win.check-system-registry-latest Gets registry data on Windows device. 24 hours Latest config_file_read
    Table 4. Policies for DEX Get online Windows user on change
    Check instance Description Frequency Historical or latest Check instance parameters
    os.win.check-system-custom-query-on-chan Gets a logged-in user's data on a Windows device whenever there’s a change. 60 secs Latest query,query_sys_id, query_type
    Table 5. Policies for DEX Get device configuration on change
    Check instance Description Frequency Historical or latest Check instance parameters
    os.all.check.internal.get-device-configu Gets a logged-in user's device configuration whenever there’s a change. 60 secs Latest Not applicable
    Note:
    If you upgrade the DEX Content Playbook plugin on an instance and encounter unexpected policy update issues, see the Troubleshooting: Policy update issues post DEX plugin upgrade [KB1586917] article in the Now Support knowledge base.