Information is stored in Schema of Active Directory.
In AD (OS server 2000,2003 etc) the all the information is stored in NTDS.DIT database if the server is standalone and not connected to any domain then account information is stored in SAM.
Using Domain User Account, users have the ability to get to the domain files.
Only computers running Windows NT or later can have a computer account in a Windows Server 2008 domain; Windows 9x computers cannot. Since Windows 98 came out after Windows NT, the answer is yes. -Brandon
user account and a computer account
NTDS.DIT the account information is stored
the Domain is called as the security boundary with in the active directory. A Windows domain is a logical group of computers running versions of the Microsoft Windows operating system that share a central directory database. domain governs the way user access resources of the network
Kerberos
Windows Domain System or Windows Domain Service
Kerberos is the default protocol used by Windows Vista/XP
a domain as "a single security boundary of a Windows NT-based computer network. Active Directory is made up of one or more domains. On a standalone workstation, the domain is the computer itself. A domain can span more than one physical location. Every domain has its own security policies and security relationships with other domains. When multiple domains are connected by trust relationships and share a common schema, configuration, and global catalog, they constitute a domain tree. Multiple domain trees can be connected together to create a forest." Domain A Windows domain is a collection of security principals that share a central directory database. This central database (known as Active Directory starting with Windows 2000,[1] Active Directory Domain Services in Windows Server 2008 and Server 2008 R2, also referred to as NT Directory Services on Windows NT operating systems, or NTDS) contains the user accounts and security information for the resources in that domain. Each person who uses computers within a domain receives his or her own unique account, or user name. This account can then be assigned access to resources within the domain. In a domain, the directory resides on computers that are configured as "domain controllers." A domain controller is a server that manages all security-related aspects between user and domain interactions, centralizing security and administration. A Windows Server domain is generally suited for businesses and/or organizations when more than 10 PCs are in use.
DOMAIN...........domain A group of users, servers, and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS
No, you do not need the windows setup wizard to assist. It will only create another account instead of repairing the other installation.