Limited Availability
Horizon 8 offers Horizon Delegate with limited availability.
Horizon Delegate is now production-ready and available through a Limited Availability (LA) program for Horizon 8.
To request access to the Limited Availability program, contact horizon-delegate-request@omnissa.com, Omnissa sales representative, or Omnissa partner.
The Horizon Delegate ADMX template file (hzn_agent_horizondelegate.admx) contains group policy settings that control Horizon Delegate features in remote desktops. To add the template to Active Directory, see Add the Horizon Delegate ADMX Template in Active Directory.
The settings are located in the Computer Configuration > Policies > Administrative Templates > Omnissa Horizon Agent > Horizon Delegate folder in the Group Policy Management Editor. The settings are also available in the corresponding User Configuration folder.
If you do not configure a setting, Horizon Delegate uses the default value listed in the tables.
Feature settings
| Group Policy Setting | Description | Default |
|---|---|---|
| Enable data loss prevention (DLP) | Determines whether Horizon Delegate enforces data loss prevention controls. See Horizon Delegate Security and Data Protection. | Enabled |
| Default permission mode | Sets the default permission mode for tool calls that request user approval.
| Default |
| Windows session-lock enforcement | Controls whether Horizon Delegate blocks input and suppresses conversation updates while the Windows session is locked.
| Enforce |
MCP server settings
| Group Policy Setting | Description | Default |
|---|---|---|
| Enable Model Context Protocol (MCP) | Turns MCP support on or off. When this setting is disabled, no MCP servers are available, built-in or third-party, regardless of the other MCP settings. | Enabled |
| Enable built-in MCP servers | Determines whether the built-in MCP servers are available. This setting has no effect unless MCP is enabled. | Enabled |
| Enterprise MCP configuration file path | The absolute path to the enterprise MCP configuration file, which describes enterprise-provisioned local (stdio) and remote (HTTP) MCP servers. Environment variables such as %ProgramData% are expanded. This setting has no effect unless MCP is enabled. See Deploying Enterprise MCP Servers for Horizon Delegate. | Not configured. No enterprise MCP configuration file is loaded. |
| MCP OAuth client name | Sets the OAuth client name that Horizon Delegate sends when it registers with an MCP server. Some MCP servers accept only client names on an allow list, so you might need to change this value for your deployment. | Omnissa Horizon Delegate |
Horizon Delegate panel settings
These settings control what users see in the Horizon Delegate panel in the Horizon Web Client.
| Group Policy Setting | Description | Default |
|---|---|---|
| Configure audio input method | Controls how Horizon Delegate captures microphone audio.
| Disabled |
| Enable screenshot capture in Horizon Delegate in Horizon Client | Controls whether users can capture screenshots of the remote desktop in Horizon Delegate. When this setting is disabled, the screenshot action is hidden. | Disabled |
| Allow copying from Horizon Delegate in Horizon Client | Controls whether users can copy content from Horizon Delegate.
| Disabled |
| Enable welcome prompts in Horizon Delegate in Horizon Client | Controls whether Horizon Delegate displays the welcome prompt buttons that you configure with the Welcome prompt 1 through Welcome prompt 5 settings. | Disabled |
| Welcome prompt 1 through Welcome prompt 5 | Each setting configures one welcome prompt button. A prompt appears only when Enable welcome prompts in Horizon Delegate in Horizon Client is enabled and the prompt setting is enabled.
| Not configured |
Resource management settings
These settings control how long Horizon Delegate keeps resources available. See Horizon Delegate Resource Lifecycle Settings.
| Group Policy Setting | Description | Default |
|---|---|---|
| Idle runtime keep-alive (milliseconds) | How long Horizon Delegate keeps an active runtime session after the client disconnects and no request is running. When this time expires, the session is disconnected to free resources, and it is re-established on the next user request. Set to 0 to disconnect immediately when the client disconnects. | 300000 (5 minutes) |
| Enable runtime session management | Controls whether Horizon Delegate manages runtime sessions across client connections and completed requests. Disable this setting only as an emergency rollback. | Enabled |
| Runtime session keep-alive after turn (milliseconds) | How long an idle runtime session is kept for reuse after a request completes. A longer time reduces response time for consecutive requests. Set to 0 to disable this timeout. While the client stays connected, the session is kept; after the client disconnects, the Idle runtime keep-alive setting applies. | 900000 (15 minutes) |
| Turn inactivity timeout (milliseconds) | The longest time a running request can make no progress before Horizon Delegate stops it. Set to 0 to disable this timeout. | 600000 (10 minutes) |
| Turn abort grace period (milliseconds) | How long Horizon Delegate waits for a request to stop after an inactivity timeout or a cancellation before it cleans up the request. Set to 0 to clean up immediately. | 15000 (15 seconds) |
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