Hi Brian,

I think it may work to use a service account.  But you would need to uninstall and reinstall the agent and specify the user using the switch:  -user <domain>\useraccount

I would however recommend instead to create a sapadm domain account and use this for all your SAP Host Agent installs.  See below:

Can I use a  sapadm domain user in Windows ?

Yes!

In some cases it might be useful to configure sapadm as a domain user instead of a local user (for example, if you have multiple hosts with SAP Host Agent on each of them). If SAP Host Agent is already installed, uninstall it and then reinstall it again with the -user option by executing the following command:

saphostexec.exe -install -user <domain>\sapadm

Regards

Toby