U

Name

Type

Description

Id

[KEY]

String

Combined index and DN. Multiple indices are only possible when a column is set to SplitDataByRow.

DN

String

The full distinguished name.

RDN

String

The relative distinguished name.

BaseDN

String

The base distinguished name.

InstanceType

String

A bitfield that dictates how the object is instantiated on a particular server. The value of this attribute can differ on different replicas even if the replicas are in sync.

NTSecurityDescriptor

String

The Windows NT security descriptor for the schema object. A security descriptor is a data structure that contains security information about an object, such as the ownership and permissions of the object.

ObjectCategory

String

An object class name used to group objects of this or derived classes.

ObjectClass

String

The list of classes from which this class is derived.

SAMAccountName

String

The logon name used to support clients and servers running earlier versions of the operating system, such as Windows NT 4.0, Windows 95, Windows 98, and LAN Manager.

AccountExpires

Datetime

The date when the account expires. This value represents the number of 100-nanosecond intervals since January 1, 1601 (UTC). A value of 0 or 0x7FFFFFFFFFFFFFFF (9223372036854775807) indicates that the account never expires.

AccountNameHistory

String

The length of time that the account has been active.

ACSPolicyName

String

String name of an ACS policy that applies to this user.

StreetAddress

String

The user's address.

HomePostalAddress

String

A user's home address.

AdminCount

String

Indicates that a given object has had its ACLs changed to a more secure value by the system because it was a member of one of the administrative groups (directly or transitively).

AdminDescription

String

The description displayed on admin screens.

AdminDisplayName

String

The name to be displayed on admin screens.

AllowedAttributes

String

Attributes that will be permitted to be assigned to a class.

AllowedAttributesEffective

String

A list of attributes that can be modified on the object.

AllowedChildClasses

String

Classes that can be contained by a class.

AllowedChildClassesEffective

String

A list of classes that can be modified.

AltSecurityIdentities

String

Contains mappings for X.509 certificates or external Kerberos user accounts to this user for the purpose of authentication.

Assistant

String

The distinguished name of a user's administrative assistant.

BadPasswordTime

Datetime

The last time and date that an attempt to log on to this account was made with a password that is not valid. This value is stored as a large integer that represents the number of 100-nanosecond intervals since January 1, 1601 (UTC). A value of zero means that the last time a incorrect password was used is unknown.

BadPwdCount

String

The number of times the user tried to log on to the account using an incorrect password. A value of 0 indicates that the value is unknown.

BridgeheadServerListBL

String

The list of servers that are bridgeheads for replication.

CanonicalName

String

The name of the object in canonical format. myserver2.fabrikam.com/users/jeffsmith is an example of a distinguished name in canonical format.This is a constructed attribute. The results returned are identical to those returned by the following Active Directory function: DsCrackNames(NULL, DS_NAME_FLAG_SYNTACTICAL_ONLY, DS_FQDN_1779_NAME, DS_CANONICAL_NAME, ...).

CodePage

String

Specifies the code page for the user's language of choice. This value is not used by Windows 2000.

Info

String

The user's comments. This string can be a null string.

Cn

String

The name that represents an object. Used to perform searches.

Company

String

The user's company name.

ControlAccessRights

String

Used by DS Security to determine which users can perform specific operations on the host object.

CountryCode

String

Specifies the country/region code for the user's language of choice. This value is not used by Windows 2000.

C

String

The country/region in the address of the user. The country/region is represented as a 2-character code based on ISO-3166.

CreateTimeStamp

Datetime

The date when this object was created. This value isreplicated.

DBCSPwd

String

The account's LAN Manager password.

DefaultClassStore

String

The default Class Store for a given user.

Department

String

Contains the name for the department in which the user works.

Description

String

Contains the description to display for an object. This value is restricted as single-valued for backward compatibility in some cases but is allowed to be multi-valued in others. See Remarks.

DesktopProfile

String

The location of the desktop profile for a user or group of users. Not used.

DestinationIndicator

String

This is part of the X.500 specification andnot used by NTDS.

DisplayName

String

The display name for an object. This is usually the combination of the users first name, middle initial, and last name.

DisplayNamePrintable

String

The printable display name for an object. The printable display name is usually the combination of the user's first name, middle initial, and last name.

Division

String

The user's division.

DSASignature

String

The DSA-Signature of an object is the Invocation-ID of the last directory to modify the object.

DSCorePropagationData

String

The DS-Core-Propagation-Data attribute is for internal use only.

DynamicLDAPServer

String

DNS name of server handing dynamic properties for this account.

Mail

String

The list of email addresses for a contact.

EmployeeID

String

The ID of an employee.

EmployeeNumber

String

The number for an employee.

EmployeeType

String

The job category for an employee.

ExtensionName

String

The name of a property page used to extend the UI of a directory object.

FacsimileTelephoneNumber

String

Contains telephone number of the user's business fax machine.

Flags

String

To be used by the object to store bit information.

FromEntry

String

This is a constructed attribute that is TRUE if the object is writable and FALSE if it is read-only, for example, a GC replica instance.

FrsComputerReferenceBL

String

Reference to replica sets to which this computer belongs.

FRSMemberReferenceBL

String

Reference to subscriber objects for this member.

FSMORoleOwner

String

Flexible Single-Master Operation: The distinguished name of the DC where the schema can be modified.

GarbageCollPeriod

String

This attribute is located on the CN=Directory Service,CN=Windows NT,CN=Services,CN=Configuration,... object.It represents the time, in hours, between DS garbage collection runs.

GenerationQualifier

String

Indicates a person generation. For example, Jr. or II.

GivenName

String

Contains the given name (first name) of the user.

GroupMembershipSAM

String

Windows NT Security. Down level Windows NT support.

GroupPriority

String

The Group-Priority attribute is not currently used.

GroupsToIgnore

String

The Groups-to-Ignore attribute is not currently used.

HomeDirectory

String

The home directory for the account. If homeDrive is set and specifies a drive letter, homeDirectory must be a UNC path. Otherwise, homeDirectory is a fully qualified local path including the drive letter (for example, DriveLetter:\Directory\Folder). This value can be a null string.

HomeDrive

String

Specifies the drive letter to which to map the UNC path specified by homeDirectory. The drive letter must be specified in the form DriveLetter: where DriveLetter is the letter of the drive to map. The DriveLetter must be a single, uppercase letter and the colon (:) is required.

Initials

String

Contains the initials for parts of the user's full name. This may be used as the middle initial in the Windows Address Book.

InternationalISDNNumber

String

Specifies an International ISDN Number associated with an object.

IsCriticalSystemObject

String

If TRUE,the object hosting this attribute must be replicated during installation of a new replica.

IsDeleted

String

If TRUE, this object has been marked for deletion and cannot be instantiated. After the tombstone period has expired, it will be removed from the system.

MemberOf

String

The distinguished name of the groups to which this object belongs.

IsPrivilegeHolder

String

Backward link to privileges held by a given principal.

LastKnownParent

String

The Distinguished Name (DN) of the last known parent of an orphaned object.

LastLogoff

String

This attribute is not used.

LastLogon

Datetime

The last time the user logged on. This value is stored as a large integer that represents the number of 100-nanosecond intervals since January 1, 1601 (UTC). A value of zero means that the last logon time is unknown.

LegacyExchangeDN

String

The distinguished name previously used by Exchange.

LmPwdHistory

String

The password history of the user in LAN Manager (LM) one-way format (OWF). The LM OWF is used for compatibility with LAN Manager 2.x clients, Windows 95, and Windows 98.

LocaleID

String

This attribute contains a list of locale IDs supported by this application. A locale ID represents a geographic location, such as a country/region, city, county, and so on.

L

String

Represents the name of a locality, such as a town or city.

LockoutTime

Datetime

The date and time (UTC) that this account was locked out. This value is stored as a large integer that represents the number of 100-nanosecond intervals since January 1, 1601 (UTC). A value of zero means that the account is not currently locked out.

ThumbnailLogo

String

BLOB that contains a logo for this object.

LogonCount

String

The number of times the account has successfully logged on. A value of 0 indicates that the value is unknown.

LogonHours

String

The hours that the user is allowed to logon to the domain.

LogonWorkstation

String

This attribute is not used. See the User-Workstations attribute.

ManagedObjects

String

Contains the list of objects that are managed by the user. The objects listed are those that have the property managedBy property set to this user. Each item in the list is a linked reference to the managed object.

Manager

String

Contains the distinguished name of the user who is the user's manager. The manager's user object contains a directReports property that contains references to all user objects that have their manager properties set to this distinguished name.

MasteredBy

String

Backward link for Has-Master-NCs attribute. The distinguished name for its NTDS Settings objects.

MaxStorage

String

The maximum amount of disk space the user can use. Use the value specified in USER_MAXSTORAGE_UNLIMITED to use all available disk space.

MhsORAddress

String

X.400 address.

ModifyTimeStamp

Datetime

A computed attribute that represents the date when this object was last changed. This value is not replicated.

MS-DS-ConsistencyChildCount

String

This attribute is used to check consistency between the directory and another object, database, or application, by comparing a count of child objects.

MS-DS-ConsistencyGuid

String

This attribute is used to check consistency between the directory and another object, database, or application, by comparing GUIDs.

MS-DS-CreatorSID

String

The security ID of the creator of the object that contains this attribute.

MSMQDigests

String

An array of digests of the corresponding certificates in attribute mSMQ-Sign-Certificates. They are used for mapping a digest into a certificate.

MSMQDigestsMig

String

In MSMQ mixed-mode, contains the previous value of mSMQDigests.

MSMQSignCertificates

String

This attribute contains a number of certificates. A user can generate a certificate per computer.For each certificate we also keep a digest.

MSMQSignCertificatesMig

String

In MSMQ mixed-mode, the attribute contains the previous value of mSMQSignCertificates. MSMQ supports migration from the MSMQ 1.0 DS to the Windows 2000 DS, and mixed mode specifies a state in which some of the DS severs were not upgraded to Windows 2000.

MsNPAllowDialin

String

Indicates whether the account has permission to dial in to the RAS server. Do not modify this value directly. Use the appropriate RAS administration function to modify this value.

MsNPCallingStationID

String

The msNPCallingStationID attribute is used internally. Do not modify this value directly.

MsNPSavedCallingStationID

String

The msNPSavedCallingStationID attribute is used internally. Do not modify this value directly.

MsRADIUSCallbackNumber

String

The msRADIUSCallbackNumber attribute is used internally. Do not modify this value directly.

MsRADIUSFramedIPAddress

String

The msRADIUSFramedIPAddress attribute is used internally. Do not modify this value directly.

MsRADIUSFramedRoute

String

The msRADIUSFramedRoute attribute is used internally. Do not modify this value directly.

MsRADIUSServiceType

String

The msRADIUSServiceType attribute is used internally. Do not modify this value directly.

MsRASSavedCallbackNumber

String

The msRASSavedCallbackNumber attribute is used internally. Do not modify this value directly.

MsRASSavedFramedIPAddress

String

The msRASSavedFramedIPAddress attribute is used internally. Do not modify this value directly.

MsRASSavedFramedRoute

String

The msRASSavedFramedRoute attribute is used internally. Do not modify this value directly.

NetbootSCPBL

String

A list of service connection points that reference this NetBoot server.

NetworkAddress

String

The TCP/IP address for a network segment. Also called the subnet address.

NonSecurityMemberBL

String

List of nonsecurity-members for an Exchange distribution list.

NtPwdHistory

String

The password history of the user in Windows NT one-way format (OWF). Windows 2000 uses the Windows NT OWF.

DistinguishedName

String

Same as the Distinguished Name for an object. Used by Exchange.

ObjectGUID

String

The unique identifier for an object.

ObjectSid

String

A binary value that specifies the security identifier (SID) of the user. The SID is a unique value used to identify the user as a security principal.

ObjectVersion

String

This can be used to store a version number for the object.

OperatorCount

String

Operator count.

Ou

String

The name of the organizational unit.

O

String

The name of the company or organization.

OtherLoginWorkstations

String

Non-Windows NT or LAN Manager workstations from which a user can log on.

OtherMailbox

String

Contains other additional mail addresses in a form such as CCMAIL: BruceKeever.

MiddleName

String

Additional names for a user. For example, middle name,patronymic, matronymic, or others.

OtherWellKnownObjects

String

Contains a list of containers by GUID and Distinguished Name. This permits retrieving an object after it has been moved by using just the GUID and the domain name. Whenever the object is moved, the system automatically updates the Distinguished Name.

PartialAttributeDeletionList

String

Tracks the internal replication state of partial replicas (that is, on GCs).Attribute of the partial replica NC object. Used when the GC is in the process of removing attributes from the objects in its partial replica NCs.

PartialAttributeSet

String

Tracks the internal replication state of partial replicas (that is, on GCs).Attribute of the partial replica NC object. Defines the set of attributes present on a particular partial replica NC.

PersonalTitle

String

The user's title.

OtherFacsimileTelephoneNumber

String

A list of alternate facsimile numbers.

OtherHomePhone

String

A list of alternate home phone numbers.

HomePhone

String

The user's main home phone number.

OtherIpPhone

String

The list of alternate TCP/IP addresses for the phone. Used by Telephony.

IpPhone

String

The TCP/IP address for the phone. Used by Telephony.

PrimaryInternationalISDNNumber

String

The primary ISDN.

OtherMobile

String

A list of alternate mobile phone numbers.

Mobile

String

The primary mobile phone number.

OtherTelephone

String

A list of alternate office phone numbers.

OtherPager

String

A list of alternate pager numbers.

Pager

String

The primary pager number.

PhysicalDeliveryOfficeName

String

Contains the office location in the user's place of business.

ThumbnailPhoto

String

An image of the user.A space-efficient format like JPEG or GIF is recommended.

PossibleInferiors

String

The list of objects that this object can contain.

PostalAddress

String

The mailing address for the object.

PostalCode

String

The postal or zip code for mail delivery.

PostOfficeBox

String

The post office box number for this object.

PreferredDeliveryMethod

String

The X.500-preferred way to deliver to addressee.

PreferredOU

String

The Organizational Unit to show by default on user' s desktop.

PrimaryGroupID

String

Contains the relative identifier (RID) for the primary group of the user. By default, this is the RID for the Domain Users group.

ProfilePath

String

Specifies a path to the user's profile. This value can be a null string, a local absolute path, or a UNC path.

ProxiedObjectName

String

This attribute is used internally by Active Directory to help track interdomain moves.

ProxyAddresses

String

A proxy address is the address by which a Microsoft Exchange Server recipient object is recognized in a foreign mail system. Proxy addresses are required for all recipient objects, such as custom recipients and distribution lists.

PwdLastSet

Datetime

The date and time that the password for this account was last changed. This value is stored as a large integer that represents the number of 100 nanosecond intervals since January 1, 1601 (UTC). If this value is set to 0 and the User-Account-Control attribute does not contain the UF_DONT_EXPIRE_PASSWD flag, then the user must set the password at the next logon.

QueryPolicyBL

String

List of all objects holding references to a given Query-Policy.

Name

String

The Relative Distinguished Name (RDN) of an object. An RDN is the relative portion of a distinguished name (DN), which uniquely identifies an LDAP object.

RegisteredAddress

String

Specifies a mnemonic for an address associated with an object at a particular city location. The mnemonic is registered in the country/region in which the city is located and is used in the provision of the Public Telegram Service.

ReplPropertyMetaData

String

Tracks internal replication state information for DS objects.Information here can be extracted in public form through the public API DsReplicaGetInfo().Present on all DS objects.

ReplUpToDateVector

String

Tracks internal replication state information for an entire NC.Information here can be extracted in public form through the API DsReplicaGetInfo().Present on all NC root objects.

DirectReports

String

Contains the list of users that directly report to the user. The users listed as reports are those that have the property manager property set to this user. Each item in the list is a linked reference to the object that represents the user.

RepsFrom

String

Lists the servers from which the directory will accept changes for the defined naming context.

RepsTo

String

Lists the servers that the directory will notify of changes and servers to which the directory will send changes on Request for the defined naming context.

Revision

String

The revision level for a security descriptor or other change. Only used in the sam-server and ds-ui-settings objects.

Rid

String

The relative Identifier of an object.

SAMAccountType

String

This attribute contains information about every account type object. You can enumerate a list of account types or you can use the Display Information API to create a list.Because computers, normal user accounts, and trust accounts can also be enumerated as user objects, the values for these accounts must be a contiguous range.

ScriptPath

String

This attribute specifies the path for the user's logon script. The string can be null.

SDRightsEffective

String

This constructed attribute returns a single DWORD value that can have up to three bits set:

SecurityIdentifier

String

A unique value of variable length used to identify a user account, group account, or logon session to which an ACE applies.

SeeAlso

String

List of distinguished names that are related to an object.

ServerReferenceBL

String

Found in the domain naming context. The distinguished name of a computer under the sites folder.

ServicePrincipalName

String

List of principal names used for mutual authentication with an instance of a service on this computer.

ShowInAddressBook

String

This attribute is used to indicate in which MAPI address books an object will appear. It is usually maintained by the Exchange Recipient Update Service.

ShowInAdvancedViewOnly

String

TRUE if this attribute is to be visible in the Advanced mode of the UI.

SIDHistory

String

Contains previous SIDs used for the object if the object was moved from another domain. Whenever an object is moved from one domain to another, a new SID is created and that new SID becomes the objectSID. The previous SID is added to the sIDHistory property.

SiteObjectBL

String

The list of distinguished names for subnets that belong to this site.

St

String

The name of a user's state or province.

Street

String

The street address.

SubRefs

String

List of subordinate references of a Naming Context.

SubSchemaSubEntry

String

The distinguished name for the location of the subschema object where a class or attribute is defined.

SupplementalCredentials

String

Stored credentials for use in authenticating. The encrypted version of the user's password. This attribute is neither readable nor writable.

Sn

String

This attribute contains the family or last name for a user.

SystemFlags

String

An integer value that contains flags that define additional properties of the class.See Remarks.

TelephoneNumber

String

The primary telephone number.

TeletexTerminalIdentifier

String

Specifies the Teletex terminal identifier and, optionally, parameters, for a teletex terminal associated with an object.

TelexNumber

String

A list of alternate telex numbers.

PrimaryTelexNumber

String

The primary telex number.

TerminalServer

String

Opaque data used by the Windows NT terminal server.

Co

String

The country/region in which the user is located.

TextEncodedORAddress

String

This attribute is used to support X.400 addresses in a text format.

Title

String

Contains the user's job title. This property is commonly used to indicate the formal job title, such as Senior Programmer, rather than occupational class, such as programmer. It is not typically used for suffix titles such as Esq. or DDS.

UnicodePwd

String

The password of the user in Windows NT one-way format (OWF). Windows 2000 uses the Windows NT OWF. This property is used only by the operating system. Note that you cannot derive the clear password back from the OWF form of the password.

UserAccountControl

String

Flags that control the behavior of the user account.

UserCert

String

Nortel v1 or DMS certificates.

Comment

String

The user's comments.

UserParameters

String

Parameters of the user. Points to a Unicode string that is set aside for use by applications. This string can be a null string, or it can have any number of characters before the terminating null character. Microsoft products use this member to store user data specific to the individual program.

UserPassword

String

The user's password in UTF-8 format. This is a write-only attribute.

UserPrincipalName

String

This attribute contains the UPN that is an Internet-style login name for a user based on the Internet standard RFC 822. The UPN is shorter than the distinguished name and easier to remember. By convention, this should map to the user email name.The value set for this attribute is equal to the length of the user's ID and the domain name.For more information about this attribute, see User Naming Attributes.

UserSharedFolder

String

Specifies a UNC path to the user's shared documents folder. The path must be a network UNC path of the form \\Server\Share\Directory. This value can be a null string.

UserSharedFolderOther

String

Specifies a UNC path to the user's additional shared documents folder. The path must be a network UNC path of the form \\Server\Share\Directory. This value can be a null string.

UserSMIMECertificate

String

Certificate distribution object or tagged certificates.

UserWorkstations

String

Contains the NetBIOS or DNS names of the computers running Windows NT Workstation or Windows 2000 Professional from which the user can log on. Each NetBIOS name is separated by a comma. Multiple names should be separated by commas.

USNChanged

String

The update sequence number (USN) assigned by the local directory for the latest change, including creation. See also , USN-Created.

USNCreated

String

The update sequence number (USN) assigned at object creation. See also, USN-Changed.

USNDSALastObjRemoved

String

Contains the update sequence number (USN) for the last system object that was removed from a server.

USNIntersite

String

The update sequence number (USN) for inter-site replication.

USNLastObjRem

String

Contains the update sequence number (USN) for the last non-system object that was removed from a server.

USNSource

String

Value of the USN-Changed attribute of the object from the remote directory that replicated the change to the local server.

WbemPath

String

References to objects in other ADSI namespaces.

WellKnownObjects

String

This attribute contains a list of well-known object containers by GUID and distinguished name. The well-known objects are system containers. This information is used to retrieve an object after it has been moved by using just the GUID and the domain name. Whenever the object is moved, the system automatically updates the Distinguished Name portion of the Well-Known-Objects values that referred to the object.The file Ntdsapi.h contains the following definitions, which can be used to retrieve an object (the GUIDs that are associated to these objects are contained in Ntdsapi.h):

WhenChanged

Datetime

The date when this object was last changed. This value is not replicated and exists in the global catalog.

WhenCreated

Datetime

The date when this object was created. This value is replicated and is in the global catalog.

WWWHomePage

String

A web page that is the primary landing page of a website.

Url

String

A list of alternate webpages.

X121Address

String

The X.121 address for an object.

UserCertificate

String

Contains the DER-encoded X.509v3 certificates issued to the user. Note that this property contains the public key certificates issued to this user by Microsoft Certificate Service.