SQLServer service login /Sysadmin rights?

Hi all,

This may be another Microsoftism, but I was going though our primary domain controller looking at user accounts and I noticed there were some SQL Server accounts one was called sqlsvc and I noticed it is in the domain admin group!

Can this really be nesessary? Has anyone had experience with this.

I am wondering what will happen if I remove sqlsvs from the group or if I change the password what it will screw up.

Any feedback would be welcome =)

It should only be there if the SQL server needs to access a file on a regular basis (for backups across the network, and etc). It shouldn't need its own admin-level user account, just write privs to the dir that it backs up to.