Running 11g OPMN windows service as a local user

We need to try running the OPMN windows service as a local user on the server (not the local system account or the account used to install the Oracle products) to try and resolve an issue we are having with printing reports directly from the reports server. The problem is that when we try to start the service after providing the local account details, the service fails to start, are there any special permissions that are required for the local user account (it has already been added to the local administrators group on the server).

This is for Oracle Forms and Reports 11gR2 running on a Windows 2012 R2 server.