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.
You can use Horizon Delegate log files and common checks to troubleshoot problems.
Log files
By default, Horizon Delegate stores log files on the remote desktop in the following location:
%TEMP%\omnissa-<username>\horizon-delegate-<sessionId>-<processId>.log
Log files rotate based on size. Each file can be up to 10 MB, and up to 10 files are kept. Older files are deleted.
Change the logging configuration
The default log level is 2 (info). Horizon Delegate reads the logging settings from the following registry keys, in this order: per-user policy, per-machine policy, and installation default.
HKCU\SOFTWARE\Policies\Omnissa\Horizon\HorizonDelegate\LoggingHKLM\SOFTWARE\Policies\Omnissa\Horizon\HorizonDelegate\LoggingHKLM\SOFTWARE\Omnissa\Horizon\HorizonDelegate\Logging
| Registry Value | Type | Description |
|---|---|---|
LogLevel | REG_DWORD | The log level: 0 trace, 1 debug, 2 info (default), 3 warn, 4 error, 5 fatal. |
HD_LOG_MAX_FILE_SIZE_MB | REG_DWORD | The maximum size of each log file, in MB. |
HD_LOG_MAX_FILES | REG_DWORD | The maximum number of log files to keep. |
Restart Horizon Delegate after you change a logging setting.
Common problems
- The Horizon Delegate panel does not appear in the Horizon Web Client - Verify that Horizon Delegate is enabled for the desktop pool and that the machines in the pool have Horizon Agent installed with the Horizon Delegate feature. Verify that the user is connecting with a supported Horizon Web Client. See System Requirements for Horizon Delegate. If the Enable Horizon Delegate setting does not appear in Horizon Console, Horizon Delegate is not enabled at the server level. Contact Omnissa to get the configuration details.
- An MCP server does not appear in the Connectors panel - Verify that the server is allowed by the Horizon Delegate group policy settings and by the GitHub Copilot allow and block lists. See Deploying Enterprise MCP Servers for Horizon Delegate.
- A local MCP server does not start - Verify that the runtime that the server needs, such as Node.js, is installed on the remote desktop.
- The screen capture or voice input action is not available - Verify the
GrabScreenshotPolicyandAudioInputMethodsettings. See Horizon Delegate Group Policy Settings.
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