Install ACC for DEX on Windows

  • Release version: Australia
  • Updated March 12, 2026
  • 1 minute to read

    • Install Agent Client Collector (ACC) to work with Digital End-User Experience (DEX) to monitor and collect data, provide insights into system performance, identify issues, and enable proactive maintenance.

    Before you begin

    Install the ITOM Cloud Services plugin.

    Create an agent registration key.

    Role required: agent_client_collector_admin

    Procedure

    1. Retrieve the publicly accessible gateway URL, based on your location.
      • AMER (Americas): itomcnc-prod-gateway.amer.sncapps.service-now.com:443
      • EMEA (Europe): itomcnc-prod-gateway.emea.sncapps.service-now.com:443
      • APAC (Asia Pacific): itomcnc-prod-gateway.apac.sncapps.service-now.com:443
    2. On the Windows server where the agent is installed, enter the following command: 
      msiexec /i <msi_file_path> /quiet /qn /norestart CONNECT_WITHOUT_MID="true" ACC_CNC="<gateway_endpoint>" REGISTRATION_KEY="<registration_key>" INSTANCE_URL="https://<instance_url>"

      The following table shows the parameter values in the command.

      Table 1. Installation command-line parameters
      Parameter Description
      CONNECT_WITHOUT_MID Specify true to enable MID-less Agent Client Collector installation. If you don't specify a value, the regular MID Server websocket installation is invoked.
      ACC_CNC Specify a public gateway endpoint for Agent Client Collector.
      REGISTRATION_KEY Active and valid registration key for the agent to communicate with.
      INSTANCE_URL ServiceNow instance that the agent is registered with.
      ACC_ALLOW_LIST Optional string. To disable the allow list, set ACC_ALLOW_LIST=0. By default, the allow list is enabled.
      Note:
      Disabling the allow list compromises your system's security and is intended as a temporary measure while you’re updating the allow list. After completing the update, enable the allow list by setting ACC_ALLOW_LIST=1.
      ACC_VALIDATE_SIG Optional string. To disable verification of the installer certification validation, set ACC_VALIDATE_SIG=0 that you can add to disable the verification of the installer certification validation. By default, validation is enabled.
      Note:
      Disable the certification validation only when using non-standard signature validation tools.
    3. Start the Agent Client Collector service using the default ServiceNow user role created during this installation.
      The default ServiceNow user role has the following privileges:
      • Performance Monitor: Viewing all performance counters in the system.
      • Log on as a service: Starting network services and services that run continuously, even when no one is logged in to the console.
      • Debug program: Monitoring the installed applications and collecting in-depth metrics and remedial actions, such as restart and stop.
    4. To collect DEX metrics, restart the ACC service using one of the following methods:
    5. Restart the Agent Client Collector service.