Fivetran HVR Service Missing After Windows OS Upgrade

Issue

After upgrading the server from Windows Server 2019 to Windows Server 2022 Standard, the Fivetran HVR service no longer appears in the Windows Services Manager. However, the HVR executables are still present.

Environment

HVR 6
Server OS: Windows Server 2022, upgraded from Windows Server 2019
Applies to HVR hub and agent installations

Resolution

To resolve this issue, re-register the HVR service from the command line:

On the affected server, open a command window as an administrator.
Change to the HVR bin directory, typically HVR_HOME/bin.
Run the command for the affected server role:
- For the HVR Hub server, run hvrhubserver with the -acs flag:
```
hvrhubserver -acs
```
- For the HVR Agent server, run hvragentlistener with the -acs flag and the original agent listener port, if different from 4343:
```
hvragentlistener -acs 4343
```

For more information, see Installing HVR Agent and Upgrading HVR Agent.

Cause

During a Windows OS upgrade, Windows may remove third-party services registered with the Service Control Manager. This can remove the registered Fivetran HVR service while leaving the HVR installation files intact.