---
sourceDocument: Australia IT Operations Management
sourceDocumentLink: https://www.servicenow.com/docs/r/australia/it-operations-management

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# MSI installation parameters

# MSI installation parameters {#ariaid-title1}

Release version: Australia  
Updated August 31, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
The following table describes the MSI parameters used when preparing an agent for installation on a gold image and used with a non-persistent virtual desktop infrastructure (NPVDI) machine.
{#msi-installation-parameters__table_lpn_byt_kkc__entry__3}

| Parameter | Type | Description |
|-|-|-|
| NP_VDI_GOLD_IMAGE | boolean | Indicates a gold image host is enabled for the NPVDI agent. Set to true. |
| INSTANCE_URL | string | ServiceNow instance base URL for REST downloads. |
| INSTANCE_REST_API_USER | string | Basic-auth username for `fetch_vdi_config` REST API. This is the user created in the [Prepare agent deployment on a non-persistent virtual desktop infrastructure machine](https://www.servicenow.com/docs/e9aW4Q27WgVcl1ETB1kqkg "Configure the preliminary settings on an instance to enable using the agent with a non-persistent virtual desktop infrastructure machine (NPVDI) machine. NPVDI agents gather data more quickly than traditional agents not enabled for an NPVDI.") procedure. |
| INSTANCE_REST_API_PASS | string | Basic-auth password; passed to the agent as the `ACC_REG_KEY` environment variable. |
| REGISTRATION_KEY | string | VDI light-registration key (must have `light_registration=true` on the instance). Passed to `acc` as the `ACC_REG_KEY` environment variable. |
| PAC_FILE | string | PAC file for proxy auto-configuration during downloads. Takes precedence over `HTTPS_PROXY`. Optional. |
| HTTPS_PROXY | string | Static HTTPS proxy URL for downloads (ignored if `PAC_FILE` is set). Applied to REST API calls only. Optional. |
| GOLD_IMAGE_SKIP_PROXY | boolean | Set to true to bypass PAC/proxy during configuration downloads and connect directly. Optional. |
| CUSTOM_PLUGIN_CERT_FOLDER | string | Directory containing custom plugin-signing certificates; copied into the agent config directory before download. Optional. |
[ ]

{#msi-installation-parameters__table_lpn_byt_kkc}