User Creation in Active Directory

Platform SDK: Active Directory, ADSI, and Directory Services

User Creation in Active Directory

In LDAP provider, you must at least specify the samAccountName attribute. You may default to the same value as the name you pass during a user creation.

In Windows® 2000, a user object can have several different names:

Common name (CN). This name will appear on most Windows 2000 tools. For example, Jeff Smith.
SAM account name (samAccountName). Clients and servers that use previous versions of Windows NT® use this attribute.
User principal name (UPN). Windows 2000 clients may use a UPN to log on to a Windows 2000 domain controller. An example of a UPN is someone@microsoft.com. The UPN should be unique for a given Windows 2000 enterprise. A Windows 2000 enterprise (also known as a forest), may include more than Windows 2000 domains. You should check the global catalog (GC) to see if a UPN has been used.