Active Directory Schema Changes

Active Directory Schema Changes

Topic Last Modified: 2006-09-25

Microsoft® Exchange Server 2007 adds many new attributes and classes to the Active Directory® directory service schema and makes other modifications to existing classes and attributes. This topic provides information about the Active Directory schema changes that occur when you install Microsoft Exchange.

The Active Directory schema changes listed in this document represent only those changes that are made by Exchange 2007. This topic does not include information about changes that are made when Microsoft Exchange Server 2003 is installed on a Microsoft Windows Server 2003 network.

Changes to Existing Class-Schema and Attribute-Schema Classes

Refer to the .ldf files for more information about changes to the Active Directory schema. The .ldf files are located in the \amd64\Setup\Data\ directory on the setup DVD.

Windows Schema Classes

Table 1 lists changed Active Directory schema classes that are not Exchange-specific.

Table 1 Active Directory Class Schema Changes That Aren't Exchange-Specific

Class	Change	Attribute/Class
Address-Book-Container	add: auxiliaryClass	Ms-Exch-Base-Class
Address-Book-Container	add: mayContain	msExchLastAppliedRecipientFilter
Address-Book-Container	add: mayContain	msExchRecipientFilterFlags
Address-Book-Container	add: mayContain	msExchQueryFilter
Address-Book-Container	add: mayContain	msExchQueryFilterMetadata
Contact	add: mayContain	msExchMasterAccountHistory
Group	add: mayContain	msExchMasterAccountHistory
Group	add: mayContain	msExchServerAdminDelegationBL
Organizational-Person	add: mayContain	msDS-PhoneticCompanyName
Organizational-Person	add: mayContain	msDS-PhoneticDepartment
Organizational-Person	add: mayContain	msDS-PhoneticFirstName
Organizational-Person	add: mayContain	msDS-PhoneticLastName
Organizational-Person	add: mayContain	msExchUserCulture
Site	add: mayContain	msExchTransportSiteFlags
Site	add: mayContain	msExchVersion
Site-Link	add: mayContain	msExchCost
Site-Link	add: mayContain	msExchVersion

Windows Schema Attributes

Table 2 lists changed Active Directory schema attributes that are not Exchange-specific.

Table 2 Active Directory Attribute Schema Changes That Aren't Exchange-Specific

Attribute	Change	Value
Locale-ID	replace: isMemberOfPartialAttributeSet	True
Address-Home	replace: isMemberOfPartialAttributeSet	True
ms-DS-Phonetic-Company-Name	replace: isMemberOfPartialAttributeSet	True
ms-DS-Phonetic-Department	replace: isMemberOfPartialAttributeSet	True
ms-DS-Phonetic-Display-Name	replace: isMemberOfPartialAttributeSet	True
ms-DS-Phonetic-First-Name	replace: isMemberOfPartialAttributeSet	True
ms-DS-Phonetic-Last-Name	replace: isMemberOfPartialAttributeSet	True
Pwd-Last-Set	replace: isMemberOfPartialAttributeSet	True
Company	replace: searchFlags	17
Department	replace: searchFlags	17
Object-Class	replace: searchFlags	9
State-Or-Province-Name	replace: searchFlags	17

Exchange-Specific Schema Classes

Exchange Server schema classes and attributes may contain the following modifications:

replace: isMemberOfPartialAttributeSet
replace: attributeSecurityGuid
add: mayContain
add: possSuperiors
replace: rangeLower
replace: rangeUpper
add: auxiliaryClass
replace:defaultHidingValue
replace: searchFlags

Indexed Attributes

The following attributes are indexed:

ms-Exch-Resource-Search-Properties
ms-Exch-UM-Dtmf-Map
ms-DS-HAB-Seniority-Index
ms-Exch-Availability-Foreign-Connector-Type
ms-Exch-Master-Account-History
ms-Exch-Recipient-Display-Type
ms-Exch-Recipient-Type-Details

The following attributes have a nonstandard search mask:

Attribute name	Flag value
ms-DS-Phonetic-Company-Name	16
ms-DS-Phonetic-Department	16
ms-DS-Phonetic-Display-Name	5
ms-DS-Phonetic-First-Name	5
ms-DS-Phonetic-Last-Name	5
ms-Exch-Resource-Search-Properties	5
Company	17
Department	17
ms-Exch-Extension-Attribute-1	17
ms-Exch-Extension-Attribute-10	17
ms-Exch-Extension-Attribute-11	17
ms-Exch-Extension-Attribute-12	17
ms-Exch-Extension-Attribute-13	17
ms-Exch-Extension-Attribute-14	17
ms-Exch-Extension-Attribute-15	17
ms-Exch-Extension-Attribute-2	17
ms-Exch-Extension-Attribute-3	17
ms-Exch-Extension-Attribute-4	17
ms-Exch-Extension-Attribute-5	17
ms-Exch-Extension-Attribute-6	17
ms-Exch-Extension-Attribute-7	17
ms-Exch-Extension-Attribute-8	17
ms-Exch-Extension-Attribute-9	17
Object-Class	9
State-Or-Province-Name	17
ms-Exch-Resource-Search-Properties	17
ms-Exch-UM-Dtmf-Map	17
ms-Exch-Availability-Foreign-Connector-Type	17
ms-Exch-Master-Account-History	17
ms-Exch-Recipient-Display-Type	17
ms-Exch-Recipient-Type-Details	17

Attributes Added to a Partial Attribute Set

Table 2 lists attributes that are added to the global catalog; these attributes will be populated and maintained by Exchange Management tools. Do not directly modify these attributes.

Table 2 Attributes Added to the Global Catalog

Address-Home	Locale-ID
ms-DS-HAB-Seniority-Index	ms-DS-Phonetic-Company-Name
ms-DS-Phonetic-Department	ms-DS-Phonetic-Display-Name
ms-DS-Phonetic-First-Name	ms-DS-Phonetic-Last-Name
ms-Exch-Assistant-Name	ms-Exch-ELC-Expiry-Suspension-End
ms-Exch-ELC-Expiry-Suspension-Start	ms-Exch-ELC-Mailbox-Flags
ms-Exch-External-OOF-Options	ms-Exch-HAB-Show-In-Departments
ms-Exch-Mailbox-OAB-Virtual-Directories-Link	ms-Exch-Mailbox-Template-Link
ms-Exch-Master-Account-History	ms-Exch-MDB-Rules-Quota
ms-Exch-Message-Hygiene-Flags	ms-Exch-Message-Hygiene-SCL-Delete-Threshold
ms-Exch-Message-Hygiene-SCL-Junk-Threshold	ms-Exch-Message-Hygiene-SCL-Quarantine-Threshold
ms-Exch-Message-Hygiene-SCL-Reject-Threshold	ms-Exch-Mobile-Allowed-Device-IDs
ms-Exch-Mobile-Debug-Logging	ms-Exch-Mobile-Mailbox-Flags
ms-Exch-Mobile-Mailbox-Policy-Link	ms-Exch-Purported-Search-UI
ms-Exch-Query-Filter	ms-Exch-Recipient-Display-Type
ms-Exch-Recipient-Type-Details	ms-Exch-Resource-Capacity
ms-Exch-Resource-Display	ms-Exch-Resource-Location-Schema
ms-Exch-Resource-Meta-Data	ms-Exch-Resource-Property-Schema
ms-Exch-Resource-Search-Properties	ms-Exch-Safe-Recipients-Hash
ms-Exch-Safe-Senders-Hash	ms-Exch-Telephone-Assistant
ms-Exch-UM-Dtmf-Map	ms-Exch-UM-Enabled-Flags
ms-Exch-UM-Fax-Id	ms-Exch-UM-List-In-Directory-Search
ms-Exch-UM-Max-Greeting-Duration	ms-Exch-UM-Operator-Number
ms-Exch-UM-Pin-Checksum	ms-Exch-UM-Pin-Policy-Account-Lockout-Failures
ms-Exch-UM-Pin-Policy-Disallow-Common-Patterns	ms-Exch-UM-Pin-Policy-Expiry-Days
ms-Exch-UM-Pin-Policy-Min-Password-Length	ms-Exch-UM-Recipient-Dial-Plan-Link
ms-Exch-UM-Server-Writable-Flags	ms-Exch-UM-Spoken-Name
ms-Exch-UM-Template-Link	ms-Exch-User-Culture
ms-Exch-Version

New Object IDs

The following tables contain the new object identifiers that are used by Exchange 2007 in an Active Directory forest. Many objects are grouped into ranges. For instance, 1.2.840.113556.1.4.7000.102.50477 - 1.2.840.113556.1.4.7000.102.50481 represents five objects. A range of objects does not necessarily mean they are related by function.

Table 3 attributeID

1.2.840.113556.1.4.1942	1.2.840.113556.1.4.1943
1.2.840.113556.1.4.1944	1.2.840.113556.1.4.1945
1.2.840.113556.1.4.1946	1.2.840.113556.1.4.7000.102.50329 - 1.2.840.113556.1.4.7000.102.50337
1.2.840.113556.1.4.7000.102.50341 - 1.2.840.113556.1.4.7000.102.50354	1.2.840.113556.1.4.7000.102.50357
1.2.840.113556.1.4.7000.102.50359	1.2.840.113556.1.4.7000.102.50360
1.2.840.113556.1.4.7000.102.50362 - 1.2.840.113556.1.4.7000.102.50400	1.2.840.113556.1.4.7000.102.50402 - 1.2.840.113556.1.4.7000.102.50405
1.2.840.113556.1.4.7000.102.50407 - 1.2.840.113556.1.4.7000.102.50410	1.2.840.113556.1.4.7000.102.50412
1.2.840.113556.1.4.7000.102.50413	1.2.840.113556.1.4.7000.102.50415 - 1.2.840.113556.1.4.7000.102.50475
1.2.840.113556.1.4.7000.102.50477 - 1.2.840.113556.1.4.7000.102.50481	1.2.840.113556.1.4.7000.102.50483 - 1.2.840.113556.1.4.7000.102.50527
1.2.840.113556.1.4.7000.102.50529 - 1.2.840.113556.1.4.7000.102.50576	1.2.840.113556.1.4.7000.102.50578 - 1.2.840.113556.1.4.7000.102.50584
1.2.840.113556.1.4.7000.102.50589 - 1.2.840.113556.1.4.7000.102.50601	1.2.840.113556.1.4.7000.102.50606 - 1.2.840.113556.1.4.7000.102.50609
1.2.840.113556.1.4.7000.102.50612 - 1.2.840.113556.1.4.7000.102.50621	1.2.840.113556.1.4.7000.102.50623 - 1.2.840.113556.1.4.7000.102.50629
1.2.840.113556.1.4.7000.102.50632 - 1.2.840.113556.1.4.7000.102.50657	1.2.840.113556.1.4.7000.102.50659 - 1.2.840.113556.1.4.7000.102.50662
1.2.840.113556.1.4.7000.102.50666 - 1.2.840.113556.1.4.7000.102.50683	1.2.840.113556.1.4.7000.102.50685 - 1.2.840.113556.1.4.7000.102.50730
1.2.840.113556.1.4.7000.102.50732	1.2.840.113556.1.4.7000.102.50734 - 1.2.840.113556.1.4.7000.102.50737
1.2.840.113556.1.4.7000.102.50740 - 1.2.840.113556.1.4.7000.102.50750	1.2.840.113556.1.4.7000.102.50752 - 1.2.840.113556.1.4.7000.102.50758
1.2.840.113556.1.4.7000.102.50760 - 1.2.840.113556.1.4.7000.102.50763	1.2.840.113556.1.4.7000.102.50765 - 1.2.840.113556.1.4.7000.102.50808
1.2.840.113556.1.4.7000.102.50811 - 1.2.840.113556.1.4.7000.102.50822	1.2.840.113556.1.4.7000.102.50829 - 1.2.840.113556.1.4.7000.102.50880
1.2.840.113556.1.6.20.1.50355

Table 4 governsID

1.2.840.113556.1.2.50049	1.2.840.113556.1.5.7000.62.50047 - 1.2.840.113556.1.5.7000.62.50048
1.2.840.113556.1.5.7000.62.50051 - 1.2.840.113556.1.5.7000.62.50080	1.2.840.113556.1.5.7000.62.50082 - 1.2.840.113556.1.5.7000.62.50090
1.2.840.113556.1.5.7000.62.50092 - 1.2.840.113556.1.5.7000.62.50093	1.2.840.113556.1.5.7000.62.50095 - 1.2.840.113556.1.5.7000.62.50097

Remarks

None of the attributes are expected to contain more than 1 megabyte (MB) of data. The schema extensions impact Windows Server 2003. For more information, review the .ldf files.