We have installed SQL Server 2008 on a Win2008 server. We use a domain\SQLServices account for both the instance service and the Agent. When we looked at the accounts created in the new instance, we found: NT SERVICE\MSSQLSERVER and NT SERVICE\SQLSERVERAGENT both with Sysadmin privs. What are these used for? Why don't we see the domain\SQLServices account that is running the services added? We found this article - http://support.microsoft.com/kb/955763 that warns against removing these accounts, but I can't find additional docs on the 2 accounts. Thanks!