After you have completed the preparation steps, you can run the Horizon Agents Installer on the template VM.
There are three possible scenarios when running the Horizon Agents Installer:
Install on Windows desktop.
Install on Windows server as a Personal Desktop (Non-RDSH)
Install on Windows server as an RDSH Role
For currently supported versions of Windows, see the VMware Knowledge Base.
If you have not run the most recent version of the Horizon Agents Installer, this can cause problems with creating RDS pools. In this case, when you create a new RDS pool, the system can allow you to select HTML Access (Blast) as a protocol, but this selection will not be applied to the pool even though it appears to have been applied successfully.