Windows Service Account

 I need to have the Oracle service run under a Windows Domain Account rather than the local system account. I created a new domain account which is a member of the domain administrators group. I also included it in the local Administrators group and the oracle_dba group. In 'Local Security policy' it was given access to sign on as a batch job and to run as a service. I think I covered all the bases here. I am able to start the service using the domain account. However, I can only login using 'internal' (i.e. connect / as sysdba). A